Paying Tribute to Irving Berlin.

New York Times television critic Peter Boyer. His new book, Who Killed CBS? The Undoing of America's Number One News Network, explores the recent turmoil within the news division of CBS, and how it has effected the entire corporation. He reports on the ill-fated reign of CBS News President Van Gordon Sauter, the tenure of Dan Rather as anchor of the CBS Evening News and the takeover of CBS by New York investor Laurence Tisch.

Susan Baur, author of Hypochondria: Woeful Imaginings, a book that examines how hypochondria develops, how hypochondriacs stay that way, and how they have been viewed over time.

Language commentator Geoffrey Nunberg comments on recent activity at the federal level regarding bi-lingual education policies, and a proposed constitutional amendment to make English the nation's official language.