As insane as this is, there will be Americans who act like they have a point. I wouldn't be surprised if John Kerry is one of them. In fact, I'd be surprised if he's not.
The idea of nuclear nonproliferation is to prevent the spread of nuclear weapons so as not to see them get in the hands of fanatics who might use them to, oh, say, wipe Israel off the face of the Earth - which the mad mullahs of Iran have actually threatened to do.