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.
Close enough to what I think. We're cloning anything we can (if a giant Mammoth gets cloned I won't be surprised), Russians push the red button is pretty plausible.
I chose:
~Big Brother-Super AI takes over government, we're screwed.
~Russia Hits The Button-It almost happened before, who says it won't happen for real.
~Food Supply-Food levels drop all over the country. Some people emigrate, some people starve, some people die to a strain of virus due to their weakened immune system.
~Small Pox-Bio-Terrorists obtain a mutant strain of virus (such as Small Pox) and spread it to the U.S. People die off because of no vaccine, nation gets quarintined. U.S.-0 Terrorists-1
I chose four, like McGraw. If we all die, we probably caused it.