WAMU 88.5FM American University Radio

Norm Kurz, former communications director for Senator Biden

Barbara Slavin, assistant managing editor for national and international security at "The Washington Times;" author of "Bitter Friends, Bosom Enemies: Iran, the U.S and the Twisted Path to Confrontation"

Larry Eichel, senior writer, "The Philadelphia Inquirer"

Norman Ornstein, resident scholar at the American Enterprise Institute; coauthor with Thomas Mann of "The Broken Branch: How Congress Is Failing America and How to Get It Back on Track"

Philip Dine, A reporter with the St. Louis Post-Dispatch and author.

Kim Strassel, a Member of the Wall Street Journal Editorial Board.