The liberty submarine.

Or the underawater freedom railroad, as you prefer to call it.
That's what we have in place now, between the U.S. and Cuba. There are people going down to Cuba to rescue their family members in dramatic moves that have put many lives in jeoparty and killed more than a few. It's not happening just because Cubans from the island want a change of airs, it's not happening just because they love the landscape of Florida.
It's the tyranny, the opressive live under the steel toed boot of kagasstro. It's the impossible life they are forced to live, where they can't even praise God in peace, where they have no input whatsoever in anything that relates to their own life. One cannot take a decission on one's kids education. One can't own a business. One can't disagree with the goverment. And the government owns you and your family.
You don't like it? Well, there's always a jail cell full of common criminals for you, or for your children.
That's called the nightmare of communism.
That's why when you ask a Cuban kid what he wants to be when he grows up, the answer will be: an American!