Deterrence logic

"Charles Krauthammer is calling for making U.S. nuclear deterrence policy against North Korea absolutely explicit: Seeing as there is no other nuclear power so reckless in its nuclear proliferation, the United States will consider any mystery nuke terror attack against any U.S. ally as having its origin in North Korea, and any such attack will trigger a full nuclear retaliatory strike on North Korea.

Krauthammer further goes on to argue that such a policy would collapse if Iran were to get a nuclear weapon, since the origin of any nuclear terror attack would not be clear."
CounterColumn