Barbara Ehrenreich is an American feminist, democratic
socialist, and political activist who describes herself as "a
myth buster by trade". She is a widely-read and award-winning
columnist and essayist, and author of 21 books. In 2006, she
founded United Professionals, an organization described as "a
nonprofit, non-partisan membership organization for white-
collar workers. Her last published book is "Smile Or Die: How
Positive Thinking Fooled America and the World", and during her
talk she shared her views on the topic.
http://tedxtalks.ted.com/video/Smile-or-die-Barbara-Ehrenreich
Worth listening!