Scientists Richard Dawkins and Lawrence Krauss travel the globe promoting a scientific worldview and the rational questioning of religious belief.
Richard Dawkins
Lawrence Krauss
Ayaan Hirsi Ali
Woody Allen
Cameron Diaz
Ricky Gervais
Stephen Hawking
Penn Jillette
Eddie Izzard
Werner Herzog
Daniel C. Dennett
Sam Harris
Sarah Silverman
Cormac McCarthy
Tim Minchin
Bill Pullman
Adam Savage
James Randi