How Do You Talk to Your Kids About 9/11?

A single rose lies above one of the names inscribed on a wall at the Sept. 11 memorial in New York, Sunday, Sept. 11, 2011.
( Allan Tannenbaum / AP Photo )
( Allan Tannenbaum / AP Photo )
Produced by Ethan Oberman and Meg Dalton
Hosted by Dr. Melissa Harris-Perry