Want to know more about this week's guests and topics?
Try clicking on some of these links:
• Sen. Joe Biden (D-DE), Chairman, Foreign Relations Committee | Senate page | Senate bio | Foreign Relations Committee
Sen. Lindsey Graham (R-SC), Armed Services Committee | Senate page | Senate bio | Armed Services Committee
Michael Gordon, Chief Military Correspondent, New York Times; Co-author, "Cobra II: The Inside Story of the Invasion and Occupation of Iraq" | Dispatches | Book Review | Speakers' bio | Book page
John Harwood, Wall Street Journal; Chief Washington Correspondent, CNBC | WSJ | CNBC bio
Judy Woodruff, PBS | Bio