The only persons I have heard of getting busted for anything related to Cubans are those who illegally import them (especially in mass quantity).
I have a friend who was allowed through US customs with 5 Cohiba Cubans in his carry on. He figured that if he was going to get them confiscated he would at least have the pride to acknowledge that he had them on his person (in his bag) as opposed to attempting to hide them. He went through US customs and got nothing more than a glance from the customs agent.
We smoked them on his patio a week later.
Bear
Dream as if you'll live forever, live as if you'll die today. -James Dean