Every sufficiently large military force in the world with nuclear weapons has plans like this. Why single out the Americans? France, Russia, China, Pakistan, India - they ALL have similiar plans.
To sum it up, we're all screwed if somebody accidently pressed the BIG RED BUTTON.
The earlier in the forenoon you take the sun bath, the greater will be the beneficial effect, because you get more of the ultra-violet rays, which are healing. - The Golden Age