Cuba's President Raúl Castro, left, gestures as he stand with First Vice President Miguel Díaz-Canel during the 7th Cuban Communist Party Congress in Havana on April 16, 2016. Díaz-Canel is expected to succeed Castro as president.
Cuba's President Raúl Castro, left, gestures as he stand with First Vice President Miguel Díaz-Canel during the 7th Cuban Communist Party Congress in Havana on April 16, 2016. Díaz-Canel is expected to succeed Castro as president. Ismael Francisco AP
Cuba's President Raúl Castro, left, gestures as he stand with First Vice President Miguel Díaz-Canel during the 7th Cuban Communist Party Congress in Havana on April 16, 2016. Díaz-Canel is expected to succeed Castro as president. Ismael Francisco AP