One things that seperates our EVIL EMPIRE from previous empires is globalism. With technology and the ability to control the people, whether they live in your jurisdiction or not, I doubt America will ever fall. Even some of our greatest enemies, like China, are so tied to us economically that they won't dare touch us.

The only way I see America falling is if these rogue nations like N. Korea lay some serious smack down on us. I wouldn't mind seeing America fall at all, since we're a nation of ignorant, bigoted, greedy imperialist fat tards who're more interested in Tom Cruise's sex life than the famine all over the world, but if it's done by mid east terrorists or rogue states killing civilians, that's pretty fucking gay too.

Tribalism vs. McWorld, no matter who wins, we lose.