We clone ourselves, get bum genes, and die.
One more link for the day, from Slate: the choose your own apocalypse generator. Insofar as apocalypse is limited to the end of American hegemony, which is its own rather Gordian knot. I don't find this particularly compelling and consider it an extension of the hollow massification of the zombie trope, but as one who writes on apocalypse, I'd be remiss to not point you here.
That said, I do find it rather fitting that my apocalyptic profile (based on my predictions of socialist revolution, internal guerrilla warfare, voluntary human extinction movement, and transition cities, and FDIC fails) is as follows:
You are a bloodthirsty misanthrope. You believe mankind is stupid and fallible and that America will destroy itself in a bloody mess. You'll know you're right when: The United States succumbs to a torrent of Russian nukes; we clone ourselves, get bum genes, and die.
Particularly because nothing I picked resembles or points to the scenarios they claim confirm my prescience. Apparently they have a difference conception of socialist revolution than I do. How surprising.