Cuba

Argentines seem to always tell me how great the beaches are in Cuba. I don't really understand why as a U.S. citizen I cannot go there. (I get the whole Communism thing, and I realize they are still a Communist nation, but how does me visiting them contribute to Communism? In addition to being a poor economics student, I'm also bad with history.) So all I can seem to tell them is, "Hopefully some day..."