There is perhaps no worse political disaster for the government of Cuba than the death of President Hugo Chávez of Venezuela. After the Soviet Union collapsed and ceased to subsidize the Castro regime, the government of Cuba went through a very difficult period. That is, until President Chávez picked up the tab. While the real amount of the subsidy is unknown, Venezuela does send more than 115,000 barrels of oil a day to the refinery at Cienfuegos and pays for tens of thousands of Cuban doctors and sports trainers who are deployed all over Latin America. The true amount is...