Cuba

Halting Iran's progress toward a bomb will require the United States to make credible promises and credible threats simultaneously -- an exceedingly difficult trick to pull off. For coercive diplomacy to work, Washington may need to put more of its cards on the table.

Fifty years ago, the Cuban missile crisis brought the world to the brink of nuclear disaster. Every president since John F. Kennedy has tried to learn from what happened back then. Today, it can help U.S. policymakers understand what to do -- and what not to do -- about Iran, North Korea, China, and presidential decision-making in general.

When Pope Benedict XVI visits Cuba next month, he will reinforce a strategy that the Vatican has allowed the local Catholic Church there to pursue for more than three decades: avoid confronting the Castro regime, collaborate with Havana to combat the U.S.-led embargo, and support the Cuban government’s incremental economic reforms. In exchange, the Church gets the space to rebuild its presence for the possible post-Castro economic boom times to come.

The smooth transfer of power from Fidel Castro to his successors is exposing the willful ignorance and wishful thinking of U.S. policy toward Cuba. The post-Fidel transition is already well under way, and change in Cuba will come only gradually from here on out. With or without Fidel, renewed U.S. efforts to topple the revolutionary regime in Havana can do no good -- and have the potential to do considerable harm.