The US government's most acute fear is that other countries are going to follow the Cuban example. They want everybody to know that if you follow this example we will attack you in every way that we can.
The real reason Cuba poses a threat has nothing to do with my being here or anyone else being here. It's because Cuba is an example of a country that is actively fighting against imperialist domination and insists on its own right to self-determination and sovereignty.
The US has attacked countries like Grenada, Panama, Libya... the list of victims of US terrorism is almost infinite. And the US government's participation in torture, whether in El Salvador, Guatemala, Chile... is well-documented and widely known.
I trust Cuba as a principled country. Cuba's strength is that it has been steadfast in its commitment to the principles of liberation, freedom, of resistance to the kind of institutionalized terrorism that the United States government does every day.
I had to adjust to living in a Third World country, which means that things people in the U.S. take for granted-like hot running water whenever you turn on the tap-are not always available.
Cubans understand that theirs is a country that provides sanctuary for people fleeing oppression. As a nation, they are very proud of this stance. They don't care how much the U.S. government badgers or attacks them.
Cuba has its own moral system and priorities. That's what keeps it going, the belief that the country can control its own destiny.