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In this April 13, 2018 photo, teacher Luisa Pacheco, 65, poses with her students in Havana, Cuba. Pacheco, who began teaching at the age of 14 in the Sierra Maestra's rural schools, said she likes education because she wants to train new generations for a good future and achieve what she did. When asked about Raul Castro's successor, she said "I hope the new president will do what our commander Fidel Castro did," adding that she wants the U.S. to remove its embargo against Cuba to help improve the economy. (AP Photo/Ramon Espinosa)