Dr. Sanjay Gupta The Daily Show : Season 16 Episode 112
TV-14 Comedy Central 22m
Aired: September 7th, 2011 @ 11:00 PM EST on Comedy Central
Mitt Romney and Rick Perry battle it out, the U.S. Postal Service faces bankruptcy, and Dr. Sanjay Gupta explores the terrifying effects of the World Trade Center's dust.
