Bill Clinton and George W. Bush recently had a face-to-face debate in Canada to discuss current affairs. The only Latin American nation mentioned in their conversation？ Cuba. In April the heads of state of the Americas met in Trinidad. The central theme？ Cuba——the only country not invited to the summit. Last week the Organization of American States (OAS) had a summit in Honduras. What thorny problem dominated the discussions of the -foreign-affairs ministers, including Hillary Clinton, who had to divert her attention from the North Korean nuclear test and the crises in the Middle East, Afghanistan and Pakistan to travel to the summit of the OAS？ Cuba, of course. A few months ago, the Brookings Institution, a Washington think tank, convened a meeting to discuss the situation in Cuba. The room was overflowing.