Perhaps I should reiterate; I'm against the bombing of Iran as preemtive means to defend the U.S. from possible attack. Now concerning whether Iran be in possession of nukes; If what you say is true, that even possession of one or few nukes would be devestating for the U.S. on both a militaristic and political scale, then I would be inclined to agree that Iran shouldn't have any nukes. But it we're going to ensure that, I would advocate non-violent and subtle methods in doing so, lest any massive destruction result of hasty actions.
In addition, I'm curious, where exactly do you stand on the matter of preemtively attacking Iran if they are in possession of nuclear weaponry? I know that you're against them having it, but I didn't see where you mentioned any thoughts concerning us bombing them first.