Hedge Fund chief John Paulson has recently bought significant stakes in three Las Vegas casino companies. Paulson has become notorious recently because he persuaded Goldman Sachs to allow him to bet against mortgage bonds. In that play, he won some $15 billion. Now he appears to be making a big bet on the casino industry with significant stakes in MGM Mirage, Boyd Gaming and Harrah's. We talk with Wall Street Journal reporter Gregory Zuckerman about Paulson and his past and future bets that seem to defy the conventional wisdom.