I have been to Havana and it is one of the most beautiful cities I have ever seen (though a clean-up wouldn't hurt). I also found the people to be exceptionally warm and friendly. I would love to visit again.

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'They'd rather be alive than free, I guess. Poor dumb bastards.' Private Eightball - Full Metal Jacket

The art of war is of vital importance to the State. It is a matter of life and death, a road either to safety or to ruin. Hence it is a subject of inquiry which can on no account be neglected
- Sun Tzu, the Art of War

I agree with environmentalism in communist states. They could even use prison labor as a form of community service that would actually benefit the environment.