Two U.S. tourists died last week at Carnival Cruise Line's new Bahamas resort, Celebration Key, after separate incidents while swimming. Police responded to both incidents on Friday, finding a 79-year-old man unresponsive after snorkeling and a 74-year-old woman unresponsive after swimming in a pool. Lifeguards administered CPR, but both died. Autopsies are ongoing to determine causes of death. The resort, opened in July for $600 million, allows exclusive access to Carnival passengers.