Reza Aslan, author of the best-seller No god but God, returned to his Muslim faith after five years as an evangelical Christian. Now, he says, he's more interested than ever in Jesus, not as he's described in the Gospels, but in his life as a man. Recently, in the Washington Post, he wrote, "there are only two hard historical facts about Jesus of Nazareth upon which we can confidently rely." Aslan's latest book is Zealot: The Life and Times of Jesus of Nazareth.