Precisely why they are not a deterrent. I guarantee that if ISIS thought it was a possibility, they would think long and hard. With the commie muzzie kenyan(YOUR BOY) prissing around the white hut, they fear nothing. When Iran or the NORKS unleash one of their's, it might be a different story and you pansy ass pacifists can go to hell!.
BTW, since you are apparently from another planet, or maybe one of Hussein's foreign invaders, perhaps you haven't heard that President Reagan passed away several years ago, so no, he won't be dropping any nukes.
Out of the three mentioned that are dead, you did recognize one.
Good look with the trolling and nonsense.