2008-03-11: Geraldo Rivera
2008-03-10: George McGovern
2008-03-06: John Legend
2008-03-05: Robert Reich, Gregory Rodriguez
2008-02-28: Richard Brookhiser, Ingrid Newkirk
2008-02-27: Tony Snow
2008-02-26: Henry Louis Gates Jr.
2008-02-14: John Feinstein, Leonard Nimoy
2008-02-11: Aubrey de Grey, Philip Zimbardo
2008-02-07: Mark Moffett
2008-02-06: Richard Brookhiser, Tad Devine
2008-02-05: Angelo Falcon, Bob Dole
2008-02-04: Tony Campolo, Jacob Weisberg
2008-01-31: Tim Harford, Andrew Napolitano
2008-01-30: Carl Hiaasen, Frans de Waal
2008-01-29: Joe Quesada, Alex Ross
2008-01-28: Marjane Satrapi, Rick Warren
2008-01-24: Debra Dickerson, Charles Nesson
