Guests: Correspondent Lesley Stahl, actor Robin Williams, former HHS Sec. Tommy Thompson, Sen. Joe Biden, actor Don Cheadle

Topics: On protecting sources, Jeff Gannon, on interrogating prisoners, Iraq elections, Darfur

Guests: From Washington, D.C.: Sens. John Kerry and Lincoln Chafee; Rep. Ileana Ros-Lehtinen, counter-terrorism expert Richard Clarke, comedian/actor Robin Williams, journalist Chris Matthews

Topics: Mark Foley scandal, 2004 and 2006 elections, Iraq War, international relations