Terry Gross

The New York Times calls Stephen Sondheim the "greatest and perhaps best-known artist in American musical theater." Sondheim composed the music and lyrics for, among others, Sweeney Todd, Into the Woods and Company. He joins Fresh Air to discuss his career in musical theater.

New York Times foreign correspondent Dexter Filkins has just returned from Afghanistan. He discusses what he's seen since the recent troop surge and explains the challenges the U.S. faces in trying to drive the Taliban out of the country.

Richard Clarke, the former anti-terrorism czar, has now turned his attention to a new national security threat: cyberwar. In a new book, Clarke details what a full-scale cyberattack could look like, how the United States is particularly vulnerable, and what measures can be taken to ensure our networks remain safe.