In the 15 months since Castro announced that any Cubans who wanted to could leave his little paradise lost, some 47,000 have flown to freedom on the twice-daily Havana-to-Miami shuttle. But when it came to some 900 persons holding dual Cuban-American citizenship, Castro kept stalling. He seemed to delight in preventing the State Department from helping people who were, at least nominally, U.S. citizens.
Last week, after a special plea from Mexico, the only Latin American country that still maintains relations with Cuba, Castro finally agreed to let the "Americans" and 1,800 of...