Video: Keeping America safe

Super-social gene may hold clues to autism, other disorders

Scientists may soon understand the link between genes and human behavior, including autism, thanks to a major effort to study Williams syndrome, a rare genetic disorder that causes people to be so excessively friendly, there's no such thing as a stranger.

Source: http://www.msnbc.msn.com/id/3036697/vp/45038507#45038507

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