FILE - In this Aug. 24, 1994 file photo, Cuban refugees stranded on a makeshift raft float in the open sea about halfway between Key West, Fla., and Cuba. While more than 50 years of enmity between the United States and Cuba is slowly vanishing, the renewed relationship is sparking fears on the communist island nation that the U.S. could also erase a unique immigration policy that favors Cubans. (AP Photo/Hans Deryk, File)