I remember reading this somewhere years ago. The idea is that Israel will nuke Paris, Berlin, London, etc, in the event that the west cuts off their support and allows it to be defeated by an enemy force.
Is this just a dumbass conspiracy theory, or is there something to it?
I don't think modern nukes are "aimed" in any significant sense of the word. With modern satellites and computers, I seriously doubt nuclear missiles have to rely on flight plans that can't be altered om reasonable notice.
If that's the case, then it really does come down to who's got their finger on the button at the time.