One missile, shot over the USA, with a nuke on it, can utterly and completely shut down every electrical circuit, device, etc. in the country. The USA would go back to the stone age in 30 seconds. The massive deaths would be unbelievable. You could not even bury the dead fast enough. Millions in hospital would die within hours. The Soviets put their brand new, super quiet submarine in the gulf of Mexico for months and we did not know it. What do you want to bet that we would even miss those ships floating around out there also. Mistake them for Florida fishing vessels.
“One missile, shot over the USA, with a nuke on it, can utterly and completely shut down every electrical circuit, device, etc. in the country. “
You’ve been reading too much prepper fiction. The Soviets actaully did it to their own people and it didn’t even knock out a town.