Clinton accuses Obama of copycatting, Stephen better knows Pennsylvania's 7th district and Susan Jacoby takes on America's anti-intellectualism. (0:34)
Stephen's adopted turtle, Stephanie Colbertle, is leading the Great Turtle Race, while two other lady turtles hang back at the nesting grounds, listening to Melissa Etheridge. (2:09)
Stephen tells us why nature is a bigger threat to us than we are to it, and recommends that Georgia beat the drought by blasting their air conditioners 24 hours a day. (4:37)
Stephen gives you All You Need To Know about the Mexican elections, Pluto's planetary status, the West African rhino and how to put on a condom. (3:11)
America faces a troop shortage, Stephen unleashes on pop culture, and the U.S. Comptroller General David Walker talks with Stephen about the national debt. (0:35)
Scientists find a new Earth-like planet, The New York Times encourages presidential candidates to debate the environment, and guest Bill Bradley talks about oil and ice cream. (0:33)