An unidentified passenger of Carnival's Adonia cruise ship dances with a couple of Cuban entertainers, as locals welcome the cruise passengers, who came from Miami, to Havana, Cuba, Monday, May 2, 2016. The Adonia's arrival is the first step toward a future in which thousands of ships a year could cross the Florida Straits, long closed to most U.S.-Cuba traffic due to tensions that once brought the world to the brink of nuclear war. (Photo by Ramon Espinosa/AP Photo)
