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Published on May 22, 2012
David Berreby is the author of "Us and Them: The Science of Identity", and has written for The New Yorker, The New York Times Magazine, Slate, and many other publications. David also writes a blog called Mind Matters at bigthink.com. Having already written a book on the topic, David talks about some of the science behind our natural tendency to form us and them groups and how us and them have value for our lives but need to be handled properly.
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