Want to know more about about this week's guests and topics?
Try clicking on some of these links:
• Sen. John McCain (R-AZ), Armed Services Committee | Homepage | Bio | Armed Services
• John Harwood, Wall Street Journal; Chief Washington Correspondent, CNBC | WSJ | CNBC
• Gen. Barry McCaffrey (Ret.), United States Army; NBC Military Analyst| Bio
• Dr. Vali Nasr, Professor, Department of National Security Affairs at the Naval Postgraduate School; Adjunct Senior Fellow, Council on Foreign Relations; Author, "The Shia Revival: How Conflicts within Islam will Shape the Future" | CCC bio | CFR bio | Book