Today's Show: Unfriendly Fire

At 3:30 Nathaniel Frank, senior fellow at the Palm Center at the University of California, Santa Barbara, comes on the show often. Today he'll join me to talk about his new expose of the "don't ask, don't tell" policy, as well as a fascinating history of gays in the military: Unfriendly Fire: How the Gay Ban Undermines the Military and Weakens America.

At 4:30 ET: Some Friday fun with Lizz Winstead, co-creator of the Daily Show and political satirist extraordinaire, will drop by and we'll no doubt have a lot of laughs. Don't forget to check out her show downtown when you're in New York, Shoot the Messenger.