Terry Gross

Questions remain about who in the Bush administration outed CIA operative Valerie Plame. Adam Liptak of The New York Times and Anne Marie Squeo of The Wall Street Journal discuss the case and the subsequent jailing of the Times' Judith Miller for refusing to reveal her sources.

Lorne Michaels is the creator and long-time executive producer of Saturday Night Live, which celebrates its 30th anniversary this year.

Pizza, one of the world's most popular foods, comes in many styles — from New York to Chicago to artichokes and free-range chicken. Food writer Ed Levine's new book, Pizza, a Slice of Heaven, gathers fact and opinion on an American staple.