FILE - In this April 3, 1989 file photo, Cuban President Fidel Castro and his brother, Defense Minister Gen. Raul Castro, left, escort Soviet Union President Mikhail Gorbachev during a welcoming ceremony at the airport, in Havana, Cuba. In the heyday of Soviet aid to Cuba, the socialist state was a paternalistic presence that provided modest but comfortable lives to virtually everyone on the island. But life in Cuba changed dramatically after the fall of the Soviet Union in 1991 resulting in a crisis known as the Special Period. (AP Photo/J. Scott Applewhite, File)