Article Photos: Cuba has much to lose as ally Chavez fights cancer 4/4

FILE - In this Sept. 26, 2012 file photo, a farmer prepares his field for planting tomatoes and chard, in Havana, Cuba. Havana learned important lessons about overdependence when the 1991 collapse of the Soviet Union threw the country into a deep crisis. Trying to avoid the consequences of a similar aid cut by  Venezuela, the Cuban government has been allowing some private-sector activity, giving a leg up to independent and cooperative farming, and decentralizing its sugar industry. (AP Photo/Franklin Reyes, File)