Writing to Change the World, with Laura Ling, Areva Martin and Kris Carr

Do you write to change the world? For these three authors and activists, the answer is unequivocally yes. Join Kamy in discussion with Laura Ling, journalist and author, with her sister Lisa Ling, of "Somewhere Inside," about her detention in North Korea and her sister's efforts to secure her release; Areva Martin, lawyer and author of "Everyday Advocate: How to Stand Up for Your Autistic Child;" and Kris Carr, maker of the documentary "Crazy Sexy Cancer," and author of two related books.