Watch Fidel Castro give what he says may be his final address in a rare public appearance at Cuba’s communist party congress, which takes place every five years. The island nation’s former leader will soon turn 90 years old. After Castro spoke to the more than 1,000 attendees, the party announced the re-election of his younger brother, Raul Castro as leader. The brothers’ seemed intent on showing that the elder revolutionaries are still very much running the show in Cuba.