Rupert Isaacson is the author of a book called "The Horse Boy." It chronicles the trip to Mongolia and Siberia Isaacson made with his family to seek out shamans in horse-centered cultures to treat his autistic son. A documentary film, also called "The Horse Boy" was produced. We hear clips from the film, and Jim Fleming talks with Rupert Isaacson about his son Rowan and his special bond with horses and what came of this extraordinary trip.