Well if Iran does go nuclear like I can see it doing, depending on Obama's foreign policy and if he thinks merely talking can win the day or not I would most likely foresee a ground attack. With forces in Afghanistan we are somewhat uniquely positioned for an attack against Iran. With all sides closed from Iraq, Afghanistan and the Gulf we could contain the personnel with the knowledge and "eliminate" them as the US see's fit for their political gains. Thereby eliminating the proliferation of technology after we become aware of it. I have no doubt that the agrogance and ego of the leaders in Iran will mean that the moment they have a weapon they will test it underground like NK has, and that will give the game away and will ultimately be their downfall... after that I doubt there would be anything we could say to the Yanks to stop them from using their military prowess against Iran.... it would be a terribly costly war, but I guess the prevention of proliferation would be worth that given the right circumstances. Its still not a nice idea, but thats the best thing to do in "realpolitik" terms am I correct? The gain of power over others throwing away certain moral restrictions?
I don't suppose giving the Iranians technology regarding Fusion reactors for electricity would help the problem? It can't be weaponized and the reaction is so hard to maintain that it can't "meltdown" like a Fission reactor can. Would more or less destroy their veil for civilian usage should it be rejected, leaving the door open for other political options.
http://www.jet.efda.org/