The 2nd conjecture is crap. If the Muslims ever did manage a nuclear detonation in our country the backlash would be felt world-wide. People of obvious Arab decent ( and yes you can pick most of them out, sadly some innocent non-Arabs would be targeted ) would be rounded up or neutralized by the armed civilian US population. In short any Muslim carrying a pacakage or driving a car would be summarily shot. As sad as that is, the US population would wake up to the fact we are at war and act accordingly that the fight was on our turf for the first time since 1865.