2012-06-05: Jill Biden
2012-06-04: Rep. John Lewis
2012-05-31: Jack Hitt
2012-05-30: Alan Alda
2012-05-29: Charlize Theron
2012-05-10: Dr. Francis Collins
2012-05-09: Anna Wintour
2012-05-08: Michelle Alexander
2012-05-07: Andy Cohen
2012-05-03: Lena Dunham
2012-05-02: Jonathan Haidt
2012-05-01: Carne Ross
2012-04-30: Diane Keaton
2012-04-26: Jack White
2012-04-25: Michael Sandel
2012-04-24: Magnus Carlsen
2012-04-23: Don McLeroy
2012-04-19: Tavis Smiley & Cornel West
2012-04-18: Arianna Huffington
2012-04-17: Jonah Lehrer
2012-04-16: Bonnie Raitt
2012-04-12: James Cameron
2012-04-11: Michelle Obama
