Stephen wonders if Sen. Joe Lieberman can win his new party's primary, talks to with Rep. Lynn Woolsey, and asks Eli Pariser if organic bake sales can save the world. (0:36)
Bill Gates worries about American competitiveness, high school students get an F in religion and Stephen interviews New York Times columnist Nicholas Kristof. (0:32)
Questions about Barack Obama's patriotism threaten to overshadow questions about Barack Obama's blackness, and Stephen's book finally comes out. (0:34)