Historian Naftali comments on conspiracy theories on the Internet [audio 5min]

Conspiracy theories surrounding the events of Sept. 11 are popping up on the Internet. The documentary Loose Change is an Internet sensation that explores many of these theories. Renee Montagne talks to Dylan Avery, director and narrator of Loose Change. She also talks to historian Timothy Naftali to understand what's behind the fascination with conspiracy theories.