A Nation of Tribes - People Like Us SD episode #1

America is a nation of tribes, and we rarely go outside our own comfort zones to interact with others.Find out more at http://bit.ly/classinamerica The opening scenes from the acclaimed documentary PEOPLE LIKE US, SOCIAL CLASS IN AMERICA by Louis Alvarez and Andrew Kolker at http://www.cnam.com Watch instantly or buy the DVD at http://shop.cnam.com