Start dialling back the rhetoric, because you are eventually going to have to accept that North Korea now has a usable nuclear deterrent. You can live with that, because it’s better than fighting a nuclear war. A direct U.S. attack on North Korea using only conventional weapons would not get all of North Korea’s nukes, which are hidden in hardened underground sites or moved around by night on mobile launchers. It would also call down 'fire and fury' on Seoul from 10,000 North Korean artillery pieces and short-range rockets.