I disagree. It would be relatively easy. Put it in a standard shipping container and put it on the next ship heading to New York. Could do some nice damage. The thing is, why the hell would they do that? Alan85 is right. The US would glass them for that. They win nothing. Much as we might not like them, the government of Iran is not a fringe terrorist group of lunatics wanting to die. There is utterly no win for them in using a nuke aggressively. The US invaded and took out the government of Afganistan for knocking over 2 buildings. Anyone have any doubts as to what would happen if you managed to hit them with a nuke? There are two things you can do as a small country with nukes. 1)Use it as a bargaining chip. 2) (possibly) prevent the US from invading you. Thats what Iran is doing. It's the same reason we built nukes back in the day. The whole idea was that if we ever actually faced an actual invasion, we would threaten to use them in order to make the US interven on our behalf.