For the first time ever, billionaire Warren Buffet officially granted a writer access to his family, friends and business life in order to write a biography about him. Alice Schroeder was given unprecedented contact with Buffett over the course of several years. She shares what she learned about the "Oracle from Omaha" his work ethic, nice-guy strategy and humble Nebraska lifestyle, despite being one of the richest men in the world. Larry talks with the author about her new book: "The Snowball: Warren Buffett and the Business of Life."