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Sociologist Barry Glassner (1999) has documented many of the biases introduced by “If it bleeds, it leads” news reporting, and by the strategic efforts of special interest groups to control the agenda of public fear of crime, disease, and other hazards. Is an increase of approximately 700 incidents in 50 states over 7 years an “epidemic” of road rage? Is it conceivable that there is (or ever was) a crisis in children’s day care stemming from predatory satanic cults? In 1994, a research team funded by the U.S. government spent 4 years and $750,000 to reach the conclusion that the myth of satanic conspiracies in day care centers was totally unfounded; not a single verified instance was found (Goodman, Qin, Bottoms, & Shaver, 1994; Nathan & Snedeker, 1995). Are automatic-weapon-toting high school students really the first priority in youth safety? (In 1999, approximately 2,000 school-aged children were identified as murder victims; only 26 of those died in school settings, 14 of them in one tragic incident at Columbine High School in Littleton, Colorado.) The anthropologist Mary Douglas (Douglas & Wildavsky, 1982) pointed out that every culture has a store of exaggerated horrors, many of them promoted by special interest factions or to defend cultural ideologies. For example, impure water had been a hazard in 14th-century Europe, but only after Jews were accused of poisoning wells did the citizenry become preoccupied with it as a major problem.
But the original news reports are not always ill-motivated. We all tend to code and mention characteristics that are unusual (that occur infrequently). [...] The result is that the frequencies of these distinctive characteristics, among the class of people considered, tend to be overestimated.
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Reid Hastie (Rational Choice in an Uncertain World: The Psychology of Judgement and Decision Making)