The best way to destabilize the Cuban regime is to normalize relations completely. Then a lot of Cubans will be free to visit the U.S. They'll see how things are here. They'll visit their relatives in Miami, who will fill their ears with praises of democracy and capitalism. And then when they go home, they'll start to ask inconvenient questions, like, "Why does Cuba have to be so POOR?" ("Freedom" will not be part of the discussion, but everyone really FEELS the difference between wealth and poverty.)