Cuba's President Raul Castro (R) talks to Cuba's Revolution Commander and Vice President Ramiro Valdez during an event in honour of the 73 people killed in the 1976 downing of a Cuban airliner in Barbados, in Havana October 6, 2011. Cuban exile and former CIA operative Luis Posada Carriles, the man accused of masterminding the attack on the Cuban airliner on October 6, 1976, currently lives free in Miami. REUTERS/Jorge Luis Banos (CUBA - Tags: POLITICS DISASTER TRANSPORT ANNIVERSARY)