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that the parasitic enemy shouldn't be exterminated. This is where scientific explanation gains considerable interest, helping us understand how we develop anticipatory pleasures and past-oriented regrets, struggle to change from habitual rewards, and acquire irrational desires for experiences we no longer enjoy — a problem that appears to maintain most forms of addiction. Humans go to restaurants and bees to flowers because both are associated with food. Within these broad categories, there are good restaurants and flowers, as well as bad ones, where good and bad are determined by experience. The experience can be direct, as when food is actually consumed, or indirect as when humans listen to an animated friend describe a restaurant's menu and bees watch a hive mate dance, providing a description of the flower's location and quality. Once the association between food and location is established, simply seeing the restaurant or flower triggers a cascade of neural and chemical activity in the brain linked to reward and the anticipation of pleasure. The restaurant and flower are cues that predict food. If you walked into your favorite restaurant and found that they sold fertilizer rather than food, you would be heartbroken. If you haven't been to the restaurant in a long time, but memorialized your previous experience as a gastronomic high, you will be deeply disappointed if your first bite doesn't live up to the standards you anticipated. This mismatch between anticipated and experienced reward will lead to a cascade of brain activity — indicative of an error. The primary engine driving the experience of reward, including predicting when it will occur and with what kind of intensity, is the dopaminergic system, a network of brain areas that releases dopamine in most invertebrates and vertebrates, including the human vertebrate. Many natural behaviors trigger dopamine, including male songbirds singing to attract females, rhesus monkeys seeing a red light that has been associated with a soon to be delivered shot of juice, and humans cooperating with each other. Many unnatural behaviors and objects can also trigger dopamine. Animals trained to press a switch for food, will often become obsessively attracted to the switch, caressing and biting it even in the absence of food; humans with addictions to cigarettes, food and gambling, will often obsessively fondle an empty cigarette carton, fork, and deck of cards, respectively. But these correlations leave open the question of whether dopamine causes the anticipation or experience of reward, or flows from these experiences. To tackle the causality problem requires experiments, either directly changing dopamine concentration or comparing individuals who, due to genetic differences, show differences in dopamine levels. We know from studies of rodents and monkeys that selectively increasing dopamine with drugs results in heightened wanting of food if there are cues to foraging, or sex if opportunity knocks. The Israelian cognitive neuroscientist Tali Sharot pursued a similar approach with healthy humans subjects. She first asked individuals to rate how happy they would be if they vacationed in 80 possible destinations. Then, some subjects took a placebo while others took L-dopa, a drug that selectively increases the release Hauser Chapter 2. Runaway desire 61 EFTA01103968
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of dopamine. Later, these same subjects imagined what it would be like to actually vacation in these places, and rated their imagined experience. Those on L-dopa felt they would be much happier, revealing the power of dopamine to cause changes in our experience of reward. Complimenting these experimental results are studies showing that genetic variation in the expression of dopamine in humans are closely tied to impulsive behaviors and behavioral disorders. Thus, individuals with genetic variants that result in higher levels of dopamine are more likely to engage in compulsive gambling and eating, leading to addictions. The anticipation of heightened pleasure leads these gamblers, eaters, and abusers to want more and more. This work shows that dopamine is necessary for monitoring and guiding our desire for reward, with evidence of individual differences that start with our biology. This is a highly adaptive system. But changes in dopamine can also cause our desire for reward to runaway, like a brakeless trolley. This is a highly maladaptive process. This flip between adaptive and maladaptive that we see within the dopaminergic system is, by now, a familiar brain routine. It provides, I believe, the means to explain all manners of excess, from the desire for food and money to drugs and violence. Obesity and drug addiction are disorders of excess. They are disorders of insatiable desire. There are many paths to obesity and addiction, but all ultimately point to changes in the reward system. In humans born with deficient levels of the hormone leptin, overeating and obesity are common outcomes. When these individuals view images of food during a brain scanning session, they show lower levels of activity in the striatum than non-leptin deficient individuals. The striatum is an area that is rich in dopamine and an essential part of the reward system. This may, at first, seem paradoxical: how could those who eat to excess not show an excess of activity in the striatum, and thus, an over-the-top experience of reward upon seeing food? The answer lies in studies of rodents and humans. Whether it is obese rats or obese people, both show compulsive eating, but lower levels of expression of dopamine in the striatum. If you silence a key dopamine gene in rats, you can quickly turn them into food junkies, driven by an unsatisfied wanting system. Overeating, like over-drugging, turns the reward dial down. This is an adaptive response, except when it operates in the mind of a food or drug junky. Though the reward hits are small and unnoticeable, the wanting system remains highly motivated, triggered by the same cues. What food and drug junkies want is more hits, but the reward system isn't delivering. This causes them to want even more. What the work on obesity and addiction tell us is that independently of how people get started on the path to fulfilling their desires, and whatever leads them to over-consume, consumption loses its luster. The brain is smart: excess is bad and thus the reward systems turns off. But because the wanting or desire system is independent from the reward system, and has evolved insurance against a complete shut down, Hauser Chapter 2. Runaway desire 67 EFTA01103969
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it continues to drive desire. Because the reward system isn't delivering the goods, excess unfolds driven by a wanting system that is looking for pleasure in all the wrong places. When we were hunters and gatherers, excess was an unborn concept. We lived on the edge then, enjoying scraps of whatever kill arrived on the fireplace, together with the tubers gathered up on the day. We, at least many of us in the West, live in a world that has a 24/7 cafeteria of food and drugs. It is a want it-have it culture. As work in molecular biology shows, and as I will pick up in chapter 4, some of us start off more vulnerable than others, susceptible to sampling from the cafeteria at all hours of the day and night. The combination of a heavily marketed environment and a biological susceptibility to excess, is a losing combination for the consumer. The work on addiction provides a template for thinking about how individuals and societies ignite a path to excessive harms. In the same way that excessive eating gets going and going out of control when the dopamine system drives an irrational desire to want more and more food that is liked less and less, so too is excessive harm often driven by a similar decoupling between wants and likes. Individuals start with a desire to acquire wealth, to physically harm those who are unlike them, or taste the sweetness of revenge against someone who acted unfairly. These desires are often linked to an experience of pleasure or the anticipation of pleasure. But as such actions and their consequences accumulate, the pleasure derived diminishes, as money is acquired just for the sake of having more, while individuals are injured, maimed, or killed because this is the policy that must be pursued. Liking is no longer part of the equation, leaving cold desire to do its work at the expense of innocent others who get in the way. To develop this idea, and especially the link to excessive harm, I have to fill in a missing piece in our discussion of desire. Everything I have discussed in this section has focused on individuals and their core corporal needs for survival — or in the case of drugs, recreation. I haven't said a word about how desire works in the social arena, whether the same systems are in play when we compare our own desires and resources with others, or with other opportunities. When desire is motivated by what others have or have achieved, are the same processes in play as when we eat, drink, or gamble? These are important questions as the desire to accumulate great wealth or to harm others is often motivated by comparison shopping, assessing what others have relative to our own status. The most primal starting point for comparison shopping is the world of hierarchies, a world where the desire to dominate rules. Power hungry Whether you are observing a social insect, fish, lizard, bird, rat, whale, monkey, or human, males are bigger and bolder, more boisterous, brash and brazen, and more motivated to get into a brawl than females. Though biologists don't define the sexes based on these differences, they use them to understand Hauser Chapter 2. Runaway desire 63 EFTA01103970
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what drives competition for valuable resources and what determines the criteria for dominance status. Biologists define the sexes based on differences in the gonads, the reproductive organs that generate eggs and sperm, and the corresponding effects of sex-specific selection on the mind, body, and behavior. Females are those with larger, more costly gonads, where cost is defined on the basis of how much energy is invested in production. Think eggs versus sperm. This difference sets up an immediate competition, especially for species that have parental care. Once you invest in a big expensive egg, you don't want to lose your investment. You want to protect it, avoiding harm and minimizing risk. On the other hand, if your investment is small, you are not only freer to take risks, but favored to do so. These ideas started with Charles Darwin. One hundred years later, they were developed in exquisite detail by the American evolutionary biologist Robert Trivers. Combined, they provide an explanation for why, in most species including our own, males compete with each other for access to females—the most valuable and limited resource —and why females are picky, expressing an aesthetic preference for males of a particular quality. Selection favors parts of the body and brain associated with dominant males and picky females. Dominant males win fights against other males, and thus gain access to females. Dominant males take risks and are more aggressive. Picky females hold out for the best males, those who provide the most desirable resources. Picky females are patient, waiting for males with good genes, access to prime real estate, and the protective skills and motivation to defend them and their young. These are qualities linked to high status. These are qualities associated with the ability to obtain and control resources. These are the qualities that females desire. Male desire for dominance is therefore nurtured by female desire for dominant males. Like appetites, these desires seek satisfaction. Like appetitive addictions that create devastating consequences for individuals, groups and nations, so too can our appetite for domination. Recall from the last chapter that testosterone and cortisol play a teeter-toner role in aggressive competition. When testosterone is high and cortisol is low, the motivation to fight and defend one's resources is high. These two hormones, and the brain areas they impact, fuel the desire to maintain a competitive edge. Recall further that winners experience an increase in testosterone, and losers a decrease, and that testosterone is addictive. Testosterone is therefore part of the system that links the desire to outcompete and gain dominance status with the rewarding experience of winning and achieving high rank. To attain high rank, including a competitive advantage over others with respect to food and mating opportunities, requires social knowledge. How tough is the alpha baboon or boss in a company, and what kind of support do they have from other individuals in the group? How sexually receptive are females when their hormonal cycles tilt them into a period of potential conception? What other males are interested in these females? Attaining and maintaining high rank also requires attention to cues that are Hauser Chapter 2. Runaway desire 64 EFTA01103971
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continuously changing, including where someone is looking and parts of the body that signal power and sexual availability. The American neuroscientist Michael Platt carried out a clever series of experiments to understand how much male rhesus monkeys value different kinds of social information and how much they will pay to obtain it. As in our discussion of wanting and liking, Platt rightly assumed that rhesus monkeys would value most what they like most, and that they would pay the highest price for what they are most motivated to acquire. Each monkey watched a slide show with viewing options akin to pay-per-view television. On a given trial, they could watch one of two images for as long as they liked, each viewing option associated with a particular amount of juice. For each pair of images, one delivered more juice than the other. Given that these were thirsty monkeys , they should prefer more juice over less juice. If monkeys have no interest in the images per se —because they have no value —then their viewing preferences should be strictly determined by where they can get the most juice. If, on the other hand, the images have value, and some images are more valuable than others, then they may be willing to look at an image that delivers less juice over an image that delivers more. This is costly viewing. This is paying for watching. Evidence for such preferences would reveal that rhesus monkeys value the social information that comes from the image over the juice itself, a surprising result given that juice is a primary reward whereas the image is only a secondary reward, indicative of things to come. Consistently, these male monkeys had two favorite channels, preferring those showing pictures of high ranking individuals and close-ups of female hindquarters. They preferred these over images of low ranking individuals, despite the fact that this choice often cost them the opportunity to drink more juice. Platt's findings show that monkeys are motivated to acquire information about socially relevant situations, including information about dominance and sex. Their motivation or desire to obtain this information is high, as evidenced by the fact that they are willing to pay a cost. Keeping an eye on a dominant is of value as dominants pose a threat, especially one staring at you. Keeping an eye on a female's hindquarters is also of value as it can signal sexual receptivity: in rhesus monkeys, as in many other monkeys and apes, the area around the vagina either swells, turns red, or both when females are ovulating. This is important information for males in their attempts to court and mate females. I will quickly pass over the potential implication of these results for thinking about the origins of pornography. Humans also value social information, with many hours in a day devoted to obtaining such information through gossip. Many of us live in a world where dominance matters, whether it is climbing to the top of a corporate chain or attaining the title of heavyweight champion of the world. Individuals seek high status because of the physical and health benefits that accrue. In such societies, our sense of self is based on our comparison with others. It is also based on a strong sense of independence, autonomy, assertiveness, and uniqueness. In other societies, the self dissolves into the other, with an Hauser Chapter 2. Runaway desire 65 EFTA01103972
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emphasis on inter-dependence, commonness, and openness to change in response to authority. These differences in self-perception show up when we attend to faces of familiar individuals. Chinese subjects, representative of a collectivistic and inter-dependent society, responded more quickly to seeing their boss's face than seeing their own face. In contrast, American subjects responded more quickly to their own face than to any other person's face, including that of their boss. Like Plan's monkeys, therefore, we too place value on social information. Unlike Plan's monkeys, our sense of value in the social domain is modulated by our cultural upbringing. This modulation, and the brain states that accompany it, shows up in direct comparisons of individuals who are motivated to attain high dominance status with those who are motivated to create equality. The American social psychologist Joan Chiao used survey information to establish two groups of individuals based on those who preferred to live in an egalitarian society and those who preferred a hierarchical society. These individuals then entered a brain scanner and viewed pictures of people experiencing pain. Two areas, both associated with the personal experience of pain and the perception of pain in others, were highly active. But these areas were less active in those who preferred hierarchies than those who preferred egalitarianism. This finding, as Chiao notes, is consistent with the idea that in an egalitarian society, empathy for others well-being is essential. In egalitarian societies, seeing someone who has less or is being harmed by another, should motivate a desire to redress the imbalance and reduce the harm. In a dog-eat-dog hierarchical society, where dominants outcompete subordinates and inequities are part of life, concern for those at the bottom is a sign of weakness. These results show how cultural influences can shape brain activity, leading some to develop deep desires for dominance and inequities, whereas others develop deep desires for equality. These brain areas heighten our sensitivity to what others have, what we desire, and how our desires are modulated by what others have. These comparisons motivate us to improve our status either by working harder— a good thing—or taking down those above us — a bad thing. I'll have what she's having One of the most famous lines in movie history was delivered by Estelle Reiner in When Han), Met Sally, a comedy produced by her son Rob Reiner. While Estelle is seated at a table in a delicatessen, Sally — played by Meg Ryan — fakes having an orgasm to show Harry— played by Billy Crystal — that he can't tell the difference between fakes and the real deal. Overhearing Ryan's performance, Estelle turns to the waiter and says "I'll have what she's having." This is comparative shopping, cashing in on Hauser Chapter 2. Runaway desire 66 EFTA01103973
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someone else's subjective experience to guide our chosen experiences. Orgasms and eating are two of the great pleasures in life, whether you live in Tokyo, Toronto, Toulouse, Tehran or Timbuktu? I doubt any healthy human adult would debate this. What can be debated is what counts as the ultimate orgasm or food experience. It can be debated both among friends and inside our own minds, influenced by personal experience and our knowledge of what else is available, or might be. Consider potato chips. As a snack, potato chips generate a revenue in the United States of about $6-7 billion dollars each year, relying on the slicing and frying of about 2 billion pounds of potatoes. These facts make clear that most Americans love potato chips, and are motivated to consume them. Like other salty snacks, it is hard to eat just one. The American psychologist Carey Morewedge and his collaborators ran an experiment to find out how much people love potato chips, and whether their anticipated fondness for this delicious crisp changes in the face of other options. Subjects sat at a table in front of a bowl of potato chips and an alternative food that was visible, but out of reach. The alternative was either a highly undesirable snack such as sardines, or a highly desirable one such as Godiva chocolate. After subjects contemplated what it would be like to eat each of these foods, they then rated how much they would enjoy them. This is like the study I described in the pleasure section where subjects rated how much they would enjoy different vacation destinations, but without the comparison between one clearly good and one clearly bad spot. Both focus on the anticipation of a pleasurable experience. Subjects' ratings of potato chip deliciousness soared when sardines were on offer, and plummeted in the presence of chocolate. Context matters. What is clearly delicious when there is nothing else on the table, loses or gains in deliciousness when the table fills up with other delectable or disgusting alternatives. What's happening to our pleasure detector, and especially our anticipated reward system, in the potato chip experiment? Are we incapable of understanding what makes us happy, unable to figure out what is or is not delicious, or are we fickle? What Morewedge's experiment reveals is that deliciousness, like ugliness, stubbornness, and obsequiousness, is a judgment, judgments are always relative or comparative, and as such, based on some standard that is either present in the moment, stored away in our memories, or anticipated in the future. When Estelle Reiner uttered her famous line, she was using Meg Ryan's orgasmic expression of delight as a comparative metric. When we compare food items or wine or pretty faces or sporty cars, we recruit our brain's resources, especially the circuitry involved in attention, emotion and memory. Whether we say that potato chips are the best snack, or better than sardines, we have made a comparison that requires our attention, our capacity to keep at least two items in memory, and a way of emotionally tagging each of the items. This comparison-shopping taxes our mental resources, recruiting them away from the job of evaluating one snack, and leading to a distorted Hauser Chapter 2. Runaway desire 67 EFTA01103974
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evaluation of desirability. Morewedge's experiments point to a mismatch between how delicious something is and how delicious we think it will be, or how delicious we thought it was. It reveals a distortion in our capacity to anticipate—or forecast in the words of the American social psychologist Daniel Gilbert —how we will feel, and in particular, how much we will like the experience. This is a problem for the elements of pleasure that I laid out earlier in this chapter, as we expect the system that links wanting and liking to be well honed, even optimized to make sure that we really want things we really like. Is this distortion something to expect across the board, independently of context, or is it specific to our food? Is the social domain similarly vulnerable to a distorted view of anticipated pleasure? Consider revenge. When someone transgresses over the borders of social norms, either harming us or those we care about, we often seek revenge, motivated to even things up. We often imagine that revenge will make us feel better, providing a honey hit to the brain that will satisfy our desire to redress an imbalance. But is this the outcome we consistently achieve when we follow through on a plot of revenge or, as Sir Frances Bacon noted over three hundred years ago, might "A man that studieth revenge, keeps his own wounds green, which otherwise would heal, and do well." In more modern and plain English, might our desire for revenge inoculate us against healing, creating an illusion that we will feel better? If so, revenge looks like an addictive process, with wanting unhinged from liking. The American psychologist Kevin Carlsmith set up an experimental game that allowed each subject within a group to contribute money to a public good. At the end of one round, the bank multiplied the total by a pre-determined amount, divided this total by the number of players, and then redistributed this amount to each player. In this game, the best for each player in the group is to contribute to the common pot because this maximized the returns. However, the best strategy for an individual is to defect, holding on to the initial endowment while reaping the rewards of everyone else's generous contributions. Those who opt out of cooperation in a public good situation stand to benefit, especially in a world with no punishment. Carlsmith created an experimental world of punishment for some players, but not all, and then explored how punishment contributed to a subject's feelings. Some could pay to punish, some witnessed the consequence of another's punitive act, and some had no exposure to a game involving punishment. When given the opportunity to punish the defector, most people punished. Everyone, both punishers and non-punishers alike, expected punishment to feel good. They were wrong. Both punishers and those who witnessed punishment felt worse, with the act of punishment compounding the bad feelings. The fact that the witnesses felt worse, as opposed to better, may seem at odds with our experience of schadenfreude, of enjoying another's misery. Shouldn't the witnesses have rejoiced upon discovering that the offenders were slapped with a punitive fine? In our own personal experience with Hauser Chapter 2. Runaway desire 68 EFTA01103975
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schadenfreude, as well as in studies that I will explore in a few sections, witnesses learn of a misfortune that happens to another but this news has no direct bearing on the witness. In Carlsmith's experiments, the witnesses learn of a misfortune, but the offender's defection has a direct bearing on the witness in terms of money lost. Thus, although punishment may feel good, the benefit may not make up for the lost income. Everyone in Carlsmith's experiments also believed that punishment would cause people to think less about the offender. They were wrong again. Punishers, but not those who simply witnessed punishment, ruminated more about the selfish offenders. Rumination led to more bad feelings. These bad feelings led to more rumination, giving birth to a vicious cycle of feeling bad and ruminating about those who cheated them of some money. Rumination heightened the comparative difference in resources. Carlsmith's findings are paradoxical and disturbing. Paradoxically, they suggest that in some situations, our expectations about the feeling of punishing an immoral act are inverted from the feelings we feel following punishment: rather than feeling a happy high, we feel a depressing low, often accompanied by increasing anger. In the context of punishing a free-rider who stiffed the group, everyone expects to feel a tingle of delicious delight, but many end up feeling angry instead. The entire polarity of the emotion has switched, with rumination and anger dominating our thoughts. This is a dangerous state to enter. Faced with the strong belief and desire that revenge should feel good, but lacking any confirmation, we are moved to find new evidence. With anger at the helm, there is only one solution: escalate the level of punishment, and continue to do so until it feels good. This is precisely the pattern I described above for obesity: the wanting system continues to search for liking and reward, but fails, and thus continues. Whether it is an unsatisfied desire for food or revenge, the unfortunate consequence is an escalation to excess. Evil isn't far behind, fueled by a variety of situations in which we fail to obtain what we want. The great leveler We are often envious of those who have what we desire, whether it is good looks, money, a warm supportive family, or a better tennis stroke. Envy can motivate us to change our looks, find careers that will improve our finances, seek relationships that will provide additional support, and pick up a few extra tennis lessons to win the next match. Unfortunately, envy can quickly turn, as desire and a deep sense of inferiority transform into insatiable cravings to acquire whatever is necessary to gain superiority. Envy thus wears two masks, one benign and inspirational, the other malignant and destructive. As the writer Dorothy Sayers noted, envy "is the great leveler; if it cannot level things up, it will level them down." Hauser Chapter 2. Runaway desire 69 EFTA01103976
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Envy emerges out of our sense of fairness, fueled by competition. It is part and parcel of a hierarchical society. When we envy someone, we have detected a difference or inequity between our own condition and that of another. We want what someone else has, presumably because we like what they have. Wanting and liking are in harmony. Recognition of the inequity fuels competition to redress the imbalance. This sense of fairness appears early in child development, changing in systematic ways as a function of a culture's norms. The Swiss economist Ernst Fehr, who led the brain imaging studies of punishment and reward discussed in Chapter 1, assembled a team of developmental psychologists to test for evidence of fairness in young children ages 3-8 years old. Fehr was especially interested in when children recognize a disparity or inequity in the distribution of resources, and what they are willing to do, if anything, to redress the imbalance. The experimenter paired up each child with a partner of the same age who was either from the same school or a different school; the school distinction was set up to look at in-group versus out-group differences which, as discussed in chapter 1, can lead parochial altruism —the paradoxical result of greater cooperation among group members and greater hatred and violence toward those outside. Though each child knew about their partner's age and school affiliation, they never saw their partner. Each child therefore knew only that they were playing with someone from their school or someone unfamiliar to them. Each child played three different games. In each game, the experimenter told one child to decide how to distribute a fixed amount of candy. In the prosoeial game, the decider either takes one candy and gives one to the partner or takes one candy and gives nothing to the partner. If children are sensitive to inequities and want to share in order to make things fair, they should pick the 1-1 option; picking the 1-0 option doesn't affect the decider, but dings the partner. In the envy game, the decider has a choice between 1-I and 1-2. As in the prosocial game, the decider gets the same amount of candy with both options, but preserves equity with I-1. Picking 1-1 also reveals that the child has an aversion to others having more, even when there is no personal cost. In the third, sharing game, the decider has a choice between 1-I and 2-0. Here again, the decider gets candy in both cases, but the 2-0 option tempts the desire for more, both personally and relatively. On the one hand, a greedy child will want more candy, and so 2 wins over 1. But picking the 2-0 option also leads to a greater difference with the partner, while robbing them of an opportunity for any candy. If fairness prevails, deciders should pick 1-1. If selfishness prevails, motivated by competition, they should pick 2-0. Across all three games, there was an increasing tendency from age 3 to 8 years old for children to pick the fair distribution (I-I). Across all ages and games, children were most likely to pick the fair distribution when playing against familiar than unfamiliar schoolmates. What these results reveal, together with many other similar studies, is that children are sensitive to the distribution of goods at an Hauser Chapter 2. Runaway desire 70 EFTA01103977
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early age, but with important developmental changes in play. There is a tendency for children to both recognize inequities early in life, but to act selfishly when possible. The envy game shows this beautifully. When another child could receive more, children rejected this option even though it wouldn't cost them directly: the decider always gets just one candy. Though no one has yet worked out what causes a developmental shift from more to less selfishness, most agree that it is driven by maturation of brain regions guiding self-control, together with social factors that make young children increasingly aware of and sensitive to their own and others' reputations. Fehr's studies also show that playing fair is not just about the distribution of resources, but about who gets them. Early in life, children have already carved up the world into those they know and those they don't. This division drives their thinking and feeling, and in cases like this, their sense of fairness. Young children are well on their way to developing parochial altruism. Fehr's research, and the majority of studies on the child's developing sense of fairness, focus on children living in large-scale Western societies. Most of the work on fairness in adults is similarly focused on large scale societies. The precise structure of these societies may directly impact how individuals decide when to share, what commodities enter into the distribution, and whether sharing depends on effort invested, needs, and power. As noted in the last section, those who support an egalitarian society are more likely to feel empathy toward those in pain than those who support a hierarchical society. Individuals who are more empathic are also more altruistic. Hunter-gatherer societies tend to be more egalitarian, and highly cooperative. These differences predict further differences in how those living in small-scale societies, including the hunter-gatherers and subsistence farmers of Africa, Asia, and South America, should respond to unfair exchanges. The American anthropologist Joseph Henrich and his colleagues presented a set of bargaining games to adults living in different small-scale societies across the globe. Though the subjects in this study played a number of different games, the basic goal was similar to those deployed by Fehr in his studies of children and adults: under what conditions will individuals choose to share an equal as opposed to an unequal distribution of resources? Consider the ultimatum game. One individual decides how to distribute a fixed amount of money to an anonymous partner; in the Henrich games, he always used the local currency and an amount that was appropriate for the society. The partner had two options: keep what is on offer or reject it. Rejection is costly to both players as they leave empty handed. Rejection is both an expression of sour grapes for what could have been —a fair offer— and punishment for selfish behavior. In large scale societies, offers typically range from 40-50% of the initial pot, and rejections are common for offers less than about 20%. Hauser Chapter 2. Runaway desire 71 EFTA01103978
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Across the globe, most people in these small scale societies offered some amount of the initial pot. Across the globe, most people rejected really low offers. This shows the universal signature of fairness: an expectation of sharing resources and a no-tolerance view of greed. Cultures differed with respect to how much they shared and whether they rejected. Some societies offered, on average, close to 40%, while others offered as little as 15%. Some societies accepted virtually all offers, whereas others rejected both low and even high offers. Even in more egalitarian societies, therefore, there is sensitivity to unequal distributions. Even in egalitarian societies, there is a willingness to punish those who act unfairly, greedily taking more than their fair share. The work I have discussed on fairness is only a fraction of the growing body of scientific evidence. What this research reveals is that a sense of fairness is part of human nature, appearing early in development, but guided by experience toward a particular cultural form. When our desire for fairness or equity combines with our competitive drive, envy often follows. Studies of the brain show how envy is generated from this combination. When healthy subjects sit in a brain scanner and learn about other individuals who have what they desire, there is considerable activity in the anterior cingulate, and more activity in those who feel more envious. This is not the envy center of the brain. There is no such area. But the recruitment of the anterior cingulate in other social situations helps us understand what is going on more generally in the case of envy. The anterior cingulate activates when we experience pain from social exclusion, but not when we witness such pain in others. It is one of the areas that was activated in Chiao's work on the differences in pain empathy for those supporting either an egalitarian or hierarchical society. The anterior cingulate is also involved when our minds are pulled in two different directions, a situation that arises when we are forced to choose between two conflicting moral options— for example, a duty to save the lives of many versus the prohibition of killing one person to save the lives of many. There is a common thread here that unites these different experiences. Like our experience of social exclusion, envy is also a form of social pain and to some, deeply painful, as it reveals a sense of deficiency in acquiring resources. Envy also represents a situation in which our positive sense of self conflicts with the negative sense of self engendered by social comparison. Our brain — and the anterior cingulate in particular— informs us that we are less accomplished when compared with others. Envy is socially imposed pain generated by comparison shopping. Envy highlights what we don't have, which fuels the system of desire, which seeks satisfaction. Unsatisfied, envy runs wild. Unsatisfied, wanting keeps hunting for pleasure. Schadenfreude delivers some prey. Hauser Chapter 2. Runaway desire 77 EFTA01103979
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O Schadenfreude On February 15, 1978, a relatively unknown boxer with few professional fights, stepped into the Las Vegas boxing ring and snatched the world heavyweight champion title from Muhammad Ali. Ali, along with his entourage of managers, coaches and fans were shocked, though no one denied that he lost. The unknown boxer was Leon Spinks. His only prior claim to fame, and ticket to a shot at Ali, was an Olympic gold medal two years earlier. With this win, not only did Spinks enjoy the heavyweight belt of champions, but a cash prize of $350,000 and a promise of $3.8 million for the rematch with Ali. But this meteoric rise to the top fizzled into a meteoric crash, driven by women, alcohol, sports cars, and a lack of training. Leon Spinks, aka "Neon Leon," was living the fast life, and rapidly losing his status as a respected sports hero. Moments before his rematch with Ali, he cruised the streets of New Orleans on top of a limousine while smoking a joint. He was flaunting his nonchalance, making fun of Ali's age, and carrying on about his ability to take the old champ without a single work out. When he entered the ring, Ali was ready. Though the match went the full fifteen rounds, it was no contest. Ali won. Newspaper writers and boxing fans celebrated the return of their champion, and mocked the downfall of an ephemeral, arrogant, and out of control hero. After losing to Ali in the rematch, Neon Leon crashed further, losing all of his earnings, taking on odd jobs for minimum wage, losing a son in a gang fight, and suffering defeat after defeat in the boxing arena. From envied millionaire sports star to bankrupt fool and the laughingstock of the boxing world. When the envied fall down, we perversely enjoy the knock out. This is schadenfreude, a German word that describes the joy we feel in witnessing another's misfortune. Though the emotion is universally understood, recognized in our written records at least as far back as Aristotle, the German language is one of the few to capture the feeling by tapping the brain's promiscuity, combining the word for harm (sehaden)with the word for joy (freude). Like envy, schadenfreude is a social, comparative emotion. It erupts when those we envy fall down, when someone we dislike meets his comeuppance, and when a misfortune is deserved. But like envy, schadenfreude presents two faces, one elevating and virtuous, the other deflating and divisive. We should feel good when a person is caught crossing a moral line, committing an injustice. Such feelings not only reinforce our own adherence to moral norms, but encourage us to punish those who transgress. Such feelings instill courage in the service of expressing moral outrage. As Robert F. Kennedy stated "Moral courage is a rarer commodity than bravery in battle or intelligence." Schadenfreude in this positive sense is the inner voice of moral courage. At the same time, it can also be the inner voice of moral disengagement, providing justification for an observed harm. Hauser Chapter 2. Runaway desire 73 EFTA01103980
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When this happens, our promiscuous brain has worked its combinatorial magic, causing us to feel good when we witness someone else's misfortune. Schadenfreude, like envy, causes us to self-evaluate, looking inside of ourselves to assess our net worth relative to others. We know from a large body of studies, several carried out by the American social psychologist Roy Baumeister, that when an individual's sense of self-worth is threatened, especially those individuals with more narcissistic and overly confident personalities, aggression often follows. The more personally threatened we feel, the more pleasure we should feel when someone else suffers. The Dutch psychologist Wilco van Dijk tested this idea with two simple experiments. In both experiments, subjects filled out a questionnaire that they believed evaluated their intellectual strengths. Upon completion and scoring of the questionnaire, some were told that they had utterly flopped, scoring in the lowest 10% of all subjects, while others were told that they performed brilliantly, scoring in the upper 10%. Next, all subjects read a scenario in which someone suffers a misfortune. For example, in one scenario, a student rents an expensive car to show off at a party, but then drives the car into a river, not only damaging the car but requiring the fire department to tow it out. Those whose sense of self-worth was threatened by the abominable test score were more likely to say that they felt good about the misfortune, including smirks and laughter in response to the show off who submerged his rented car. These results powerfully show that schadenfreude serves the beneficial function of hoisting our own self- worth. When our self-worth has been challenged, for whatever reason, we feel better knowing that someone else is worse off, regardless of context or direct relevance. Our desire to see others suffer so that we may feel better can escalate to absurd levels, especially when it is fueled by ideology. Beliefs can blind us to the cost-benefit analysis, motivating us to see harm done to those outside of our inner sanctum even if it hurts us as well. Religious and political ideologies are two of the hotspots that can drive entirely irrational desires and absurd attributions. The American psychologist Richard Smith explored whether an individual's political convictions influenced the intensity of schadenfreude when witnessing a member of another party suffer, including cases where society at large also suffers. Smith initiated the study prior to the US Presidential elections in 2004 involving Republican George W. Bush and Democrat John Kerry; during this period, the Republicans controlled both executive branches of the government. Each subject — all college undergraduates—provided information about party affiliation and strength of support for the policies and beliefs of their party. Next, every subject read and provided reactions to short newspaper articles describing tragicomic moments for the two candidates, one in which Bush fell off his bicycle while riding, and the other involving Kerry wearing a bizarre space outfit during a visit to NASA. Last, subjects read and reacted to an article describing job losses and the economic downturn facing the nation — an article meant to capture an objective cost to all members of society, irrespective of party affiliation. Hauser Chapter 2. Runaway desire 74 EFTA01103981
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Unsurprisingly, Democrats expressed more pleasure from reading about Bush's bicycle accident, whereas Republicans were more joyful over Kerry's bizarre space suit. Surprisingly, Democrats also expressed pleasure from reading about the economic downturn, and more pleasure than the Republicans who were more likely to express negative feelings about this situation. Thus, despite the fact that the economic downturn hurt everyone, the Democrats expressed pleasure over the added damage this inflicted on the Republicans — who they held responsible —and conversely, the added benefit it brought to the Democrats who could wag their fingers. In a second study, Smith found that Democrats experienced more schadenfreude than Republicans over the number of casualties reported out of the Iraq war, even though Iraqis were certainly not preferentially targeting Republicans. The pleasure they experienced was entirely driven by the fact that this was a war sponsored by a Republican government, and thus, the fatalities could be blamed on the Republicans. From a Democrat's perspective, even though everyone loses when soldiers die in war, it is a bigger loss for Republicans, and thus, a bigger gain for Democrats. With schadenfreude, it is all about comparative shopping. It is all about satisfying our desires relative to others. As noted above, schadenfreude appears to emerge strongly when an individual's misfortune is deserved. To explore what is happening in the brain when such pleasure is experienced, and the situations that might trigger it, the German cognitive neuroscientist Tania Singer set up a study involving healthy men and women. In the first phase, subjects played a bargaining game for money against an unfamiliar partner; prior to the game, and unbeknownst to the subject, Singer set things up so that the partner played either fairly or unfairly. After the game, each subject entered a scanner, and watched their partner receive a painful shock to the hand. Predictably, Singer discovered that both men and women liked the fair players better than the unfair players, and showed more empathy to fair players when they were shocked. Proof of empathy was read off the images of brain activation, especially the brain circuitry known to be involved in pain empathy, and mentioned earlier in my discussion of Joan Chiao's work on social hierarchies: the insula and anterior cingulate. Unpredictably, Singer discovered that the level of activity in this pain empathy circuitry was reduced when men —but not women —saw unfair players receive pain. She also observed that in men —but not women —there was increased activity in the nucleus accumbens—an area mentioned earlier on that, in rats, monkeys and humans is consistently associated with the experience of reward and liking. The more individual men desired revenge for an unfair offer, the more activity they showed in this reward area. Singer's findings are joined by many others showing that the nucleus accumbens, together with other reward areas, are activated in a wide variety of situations in which we gain from others' pain. But because these same areas also respond to non-social, non-comparative experiences, such as eating, we Hauser Chapter 2. Runaway desire 75 EFTA01103982
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come back to a critical point in this chapter: areas that evolved for one function are readily recruited for others, especially in a promiscuous brain like ours. As long as something makes us feel good, whether it is winning, eating, social comparison, or harming another, the reward areas of the brain turn on. Schadenfreude is one of the mind's ambassadors, enabling us to journey from a state of inferiority to superiority. It enables "imaginary revenge" in the words of German philosopher Friedrich Nietzsche. Like envy, it is highly adaptive, focusing our attention on inequities. Like envy, it is also maladaptive, rewarding us when the inequity is not only addressed, but results in another's failure and misery. If failure is associated with violence, including death, so be it. The brain is poised to inspire our desire to harm or witness harm in order to feel good. An appetite for violence Billions of people, perhaps all humans, have had vivid fantasies about sex, violence, or sexual violence. Are these fantasies like food fantasies, cravings that need to be satisfied? Or, as some theories would have it, are sexual and violent fantasies satisfying on their own, playing a cathartic role, releasing energy and thus, reducing the need to act out? Seung-Hui Cho was born in South Korea and then moved to the United States with his parents. During his first three years in college, both students and professors in his literature and theatre courses described his writings as disturbing and disgusting, and his actions toward other students as ominous and frightening. One professor noted that his creative pieces "seemed very angry," while another demanded that he be removed from the class. A classmate noted that his plays were "really morbid and grotesque...I remember one of them very well. It was about a son who hated his stepfather. In the play, the boy threw a chainsaw around and hammers at him. But the play ended with the boy violently suffocating the father with a Rice Krispy treat." Cho was advised to seek counseling. He didn't. No one followed up. A professor aware of his often inappropriate comments and behavior contacted members of the administration. No response. Several women alerted the campus police after Cho stalked them. No disciplinary action was taken despite his repeated offenses. As in the SEC's tin ear to the alarms surrounding Madoff's dubious securities, so too was everyone at Cho's university deaf to his alarming behavior in class and out. During his senior year, Cho wrote an essay describing his anger toward rich kids, the unfairness of life, and his own misery. He also described a revenge fantasy, packed with images of retaliation toward those who had what he lacked. He sent his reflections along with excessively violent photographs and videotapes to the New York headquarters of NBC news. Under a photograph of bullets he provided the caption "All the [shit] you've given me, right back at you with hollow points." Hamer Chapter 2. Runaway desire 76 EFTA01103983
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On April 16, 2007, Cho dressed up in army fatigues. He left his dormitory and killed 32 people and wounded 25 others with a semi-automatic Glock 19 pistol filled with hollow-point bullets, designed to cause more tissue damage than traditional bullets. Cho then shot himself in the temple, ending his life and the Virginia Tech massacre. Cho's case provides a horrifying example of how fantasies of violence can lead to real life enactments and a trail of blood. It also provides a counter-example of the catharsis view: Cho's fantasies about violent revenge did not make him feel better. It made him feel worse and more violent — a pattern supported by dozens of studies. Normally raised children as young as seven years old are more likely to act aggressively toward their peers if they are self-absorbed in a world of aggressive fantasy, and this is especially the case for children who witnessed violence or were subjected to it. Adult men and women are more likely to crave violence after reading an argument in favor of the cathartic magic of violent fantasies than after reading a manifesto against catharsis. Men who engage in aggressive sexual fantasies are more likely to engage in aggression, but only if they are narcissists. Men who engage in deviant sexual fantasies are more likely to enact these fantasies, but only if they exhibit signs of psychopathy. Psychopathy and narcissism are like Siamese twins, inseparable. What these studies show is that those who are self-absorbed and play with violent or sexual fantasies, are most likely to take these imaginary worlds onto the real world stage. Further evidence of the connection between violent fantasies and violent actions comes from studies by the German psychologist Thomas Elbert who studied child soldiers brainwashed into joining the ranks of the Lord's Resistance Army, Northern Uganda's rebel group. Since its inception in 1987, the LRA has recruited 25-65,000 children, starting with boys and girls as young as 10-12 years old. In detailed interviews and analyses of now retired child soldiers, Elbert discovered that those who had more experience with killing developed stronger, appetite-driven fantasies of killing, a hunger that had to be fulfilled by real killing. As one ex-child soldier noted "The more we killed, the more we acquired a taste for it. If you are allowed to act out this lust it will never let you go again. You could see the lust in our greed popping eyes. [...] It was an unprecedented pleasure for everyone." Not only was fantasy converted into killing, but the more they killed, the less they experienced any trauma in later life. Unlike the droves of veterans who have been returning from Iraq and Afghanistan, and suffer from post-traumatic stress disorder or PTSD, these child soldiers developed an immunity. Many of the veterans from Iraq and Afghanistan had no interest in killing, and deemed the war unnecessary. In contrast, these child soldiers were brain washed into believing that killing was necessary, and a sign of importance. Killing that is justified is rewarding, whether the justification is real or the product of self-deception. When self- deception joins the fray— as I further develop in chapter 3 — killing is not only rewarding but virtuous. Hauser Chapter 2. Runaway desire 77 EFTA01103984
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Cho's case is not the exception, but the rule: persistent fantasies, whether sexual, violent, or sexually violent, are often played out in real life. When people voice their fantasies, we should open our ears. When therapists, especially those influenced by the catharsis view of the mind, encourage their patients to engage in aggressive fantasies to release their pent up energy, we should bring forward malpractice suits as they are accomplices to crime. What kind of mind is most likely to rev up the fantasy world to supersonic levels and then unleash it in the service of excessive harm? Lust murderers — individuals with a craving for the bizarre and degenerate —provide one answer to this question. Lust murderers are typically repeat offenders or serial killers. The serial nature of their crimes comes from the fact that they are motivated by recurrent fantasies that create recurrent cravings. They are, effectively, addicted to violence. Their fantasies often entail some kind of paraphilia — an extreme and abnormal sexual arousal to objects, people or situations — played out through some form of sadism— a persistent pattern of sexual or non-sexual pleasure from humiliating, punishing and harming others. Here again we see the promiscuous human mind at work, seamlessly blending pleasure and violence, animate and inanimate attractions, sometimes with benign origins, but often with malignant outcomes. Thus, the pleasure derived from humiliation may develop out of the more common, normal and less harmful pleasure we experience from mockery and humor. Humiliation is just a small step away in a mind that derives joy from others' demise. The paraphilias, like many of the other disorders that appear within the Diagnostic and Statistical Manual of Mental Health, fall along a continuum from rather benign forms of voyeurism to erotophonophilia, the vicious and sadistic killing of an innocent victim in order to achieve ultimate sexual satisfaction. Regardless of the particular object or situation driving the paraphilia, individuals become addicted. Like other addictions, including those associated with food, drugs, and alcohol, paraphilic addicts experience withdrawal. Dangerously for the world around them, the erotophonophilic or lust killer harbors sadistic paraphilias, including flagellation — the need to club, whip or beat someone — anthropophagy — the desire to eat human body parts— picquerism— a craving to stab someone or cut off their flesh, focusing especially on genitals and breasts— and necrosadism— a yearning to have sexual contact with the dead. Although these desires may seem unimaginable, they reveal one facet of the human mind's potential— a potential that was fully realized in the mind of Jeffrey Dahmer who flagellated, cannibalized, dismembered, and engaged in necrophilia with his 17 victims. Such disordered minds are part of the human condition, one that stretches from individuals who never cache in on their fantasies to those who not only deliver, but develop — as in addictions to food and drugs — deeper and deeper desires for harming others without the rewards that come from such harm. When wanting and Hauser Chapter 2. Runaway desire 78 EFTA01103985
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liking part company, with liking falling dormant due to sensitization, wanting grows in intensity, seeking but failing to find satisfaction. So begins an appetite for violence, one that can turn into a craving. A craving to impress Gazelles on the Serengeti plains of Tanzania sometimes move in an exceptionally bizarre way. With legs rigidly extended, they bounce up and down like kangaroos. There is no obvious function associated with this movement. If anything, it appears energetically wasteful. If these gazelles lived in tall grass, one might think that the bouncing was designed to better see or be seen. But the Serengeti plains are flat and the grass is short. Gazelles can see for miles in this habitat and so can everything else that shares this gorgeous part of the planet with them. This includes the lions, leopards and cheetah that think of gazelles as breakfast, lunch and dinner. Why would a gazelle advertise like this? Why alert predators to your location and availability? Why not use the coloration of your fur to blend into the color scheme of the savannah, moving swiftly but imperceptibly? We can explain the gazelle's bizarre movements—called slotting—by thinking economically, using Zahavi's honest signaling theory that I described in Chapter 1. Whenever evolutionary biologists see a behavior that is costly, they immediately search for a potential benefit. The reason is simple: behaviors that tax an individual's chances of survival and reproduction are ultimately weeded out by the force of natural selection. There must be some benefit to the individual or to others in order to neutralize the costs. Given the ostentatious nature of the gazelle's stoning, who benefits and how? Since the behavior is eye-poppingly interesting to human observers, one assumes that it is eye-popping to other animals on the Serengeti plains as well. Gazelles typically stot when they detect danger which, in the Serengeti, means leopards, lions and cheetah. If gazelles stot to alert other gazelles, then most gazelles should stot, at least some of the time. This is because all gazelles are vigilant, should have multiple opportunities to see these predatory cats, and should benefit from an alarm signal. But this is not what we observe. Instead, stotting seems to be reserved for those in good shape. When gazelles stot, they appear to be sending a cease and desist signal to any observant cat. If this is the gazelles' message, then cats should selectively chase non-stoners over stoners. And when cats turn a blind eye to stoning gazelles and chase them, they should have less success than when they chase non-stoners. Stoners are turbo-charged. Stoning is simply their way of showing off. These expectations are supported by the British biologists Claire Fitzgibbon and Tim Caro who spent hundreds of hours watching gazelles and predatory cats. What they reveal is that stoning is an honest signal of condition or quality. Only gazelles in good condition can tolerate the costs of stoning. Hauser Chapter 2. Runaway desire 79 EFTA01103986
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Stoning handicaps the individual, imposing a significant cost on the ability to move. But the cost paid is relative to the individual's condition. Without the cost and the ability to manage it, everyone could stot. And if everyone could stot, the cats would quickly figure out how meaningless it is and look for other cues to vulnerability. Stoning appears excessive, but in fact is an honest signal of power. It is, to borrow a phrase from the economist Thorstein Veblen, "conspicuous consumption." By flaunting their superior condition, throwing away resources just because they can, these stotting gazelles benefit in the long run, living longer and leaving more offspring who will inherit their qualities. These ideas carry over into human behavior, from big spenders to, I suggest, big harmers. The American anthropologist James Boone has suggested that human magnanimity evolved as did stoning, as an honest signal of wealth and power. It represents a desire to impress through wastage. Handicap yourself in the short run to benefit your wealth and status in the long run. Big tippers don't tip in private, but in the presence of those who can admire their lavish tips. Hunter-gatherers who bring home large prey from a day of hunting don't make cryptic deposits for others, but make sure that their offerings are public. The Mayan pyramids were not built for personal enjoyment behind walled enclosures, but in the open, visible to potential enemies as displays of excessive power to create something really big and costly. Rappers such as layZ, Puff Daddy, and 50 cent don't have absurdly lavish cribs with a six pack of sports cars because this is what they like, but because this is what they can show off on MTV. Flaunting, even at a substantial cost, provides a path to power. This is a club whose mono reads "Impress with excess." My suggestion is that excessive harms work as honest signals of wealth and power. Here we combine the HOW of evil—discussed in this chapter—with the WHY of evil—discussed in chapter I. When millions are raped, slashed, burned, chopped up, gored, and dropped out of planes before dying, there are only two possible explanations: the evildoer is clinically mad with no sense of moderation or a healthy schemer who has allowed desire to run wild. The schemers are like stotting gazelles, wanting to impress others of their awesome powers by performing high risk displays. The schemers deploy proactive, premeditated, and cold violence— like predators. As the sociologist Wolfgang Sofsky noted in his commentary on the Nazi concentration camps "Individuals demonstrated commitment by acting, on their own initiative, with greater brutality than their orders called for. Thus excess did not spring from mechanical obedience. On the contrary; its matrix was a group structure where it was expected that members exceed the limits of normal violence." Unfortunately for society — past, present and future— the Nazis are not an isolated case. When Slobodan Milosevic, Radovan Karadic, and Ratko Mladic launched their ethnic cleansing initiative, they didn't just displace or kill Albanians and Croatians, they raped their women, old and young, in front of husbands, fathers, and grandfathers— and then killed man Hauser Chapter 2. Runaway desire 80 EFTA01103987