FILE - In this April 19, 2011 file photo, Fidel Castro, left, raises his brother's hand, Cuba's President Raul Castro, center, as they sing the anthem of international socialism during the 6th Communist Party Congress in Havana, Cuba. Raul turns 81 on Sunday, June 2, 2012; another reminder to his countrymen and the exiles who hate him that time is catching up with the island's aging revolutionaries. (AP Photo/Javier Galeano, File)