Who is the Dalai Lama? He’s a Nobel Peace Prize recipient, leader of the Tibetan government-in-exile, and spiritual leader of millions. We’ll spend this hour with journalist Mayank Chhaya, author of the first authorized biography of the Dalai Lama by a non-Buddhist. The book is “Dalai Lama: Man, Monk, Mystic” (Doubleday, 2007).