Photo left: Nuba Village, Nuba Mountains, Sudan.
Hour One
Liz Peek, Fox News. Francis Rose, WJLA. Patrick O'Donnell, author, ""Washington's Immortals." Henry Miller, Hoover.
Hour Two
Michael Vlahos, Johns Hopkins. Trevor Snapp; Sam Wolson, filmmakers, "We Who Remain."
Hour Three
Gene Marks, WashingtonPost.com. Jim McTague, author, "Crapshoot Investing."
Hour Four
Adrian Goldsworthy, author, "Pax Romana." Bob Zimmerman, BehindtheBlack.com