Waiting out there could be some profound discoveries about human and animal behavior, epidemiology and a host of other sciences.

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What began as a list of "usual suspects" for law enforcement expanded to include juveniles in the late 1980s and early 1990s under the premise that teens who committed sex offenses were "destined to become sexual predators, " said psychologist Mark Chaffin, professor of pediatrics at the University of Oklahoma Health Sciences Center, who specializes in sexual behavior in youth.

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But another study on trust, by Judith Olson, a cognitive psychologist and professor of information and computer sciences at University of California, Irvine, showed that people who met virtually could predict behavior and establish trust if they had enough time.

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