All-Out-Nuclear-War is going to destroy humanity. The U.S. dropping of nuclear weapons on japan, and testing of these weapon is too much of threat for other nations not to take notice. The attempt by head of states to prevent other nations from having these weapons is futile. If we do not eradicate the U.S. stockpile, then we are in for a bumpy road, and can not expect other nations to follow suit. You can say good bye to the world of char.

Nuclear war is a sexy candidate, but I don't believe we will ever choose to self-detonate so freely, and even then, while nuclear war could well end civilization as we know it, humans as a species would carry on. I don't see us ever going extinct so long as this planet is capable of supporting life. We're just too darned adaptable. We will only cease to be in the case of a major cataclysmic geological/cosmic event, such as a collision with a large celestial body (asteroid, comet, moon), if we get baked by a sudden burst of cosmic radiation, or if something really wacky happens with the sun. Anything else might be bad, might be reeeeally bad, but somewhere somehow humankind would soldier on.

the epic clash between the mighty forces of Oprah and Chuck Norris.

Godzilla, I hope. I grew up with him. I'd get out a trumpet and play that song that he destroys stuff to.

"Da da da daaa, da da da daaaaaaaa, da daaa daaa".

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Two "no's" make a "yes". Can't argue with math.

Socialsim....

Nuclear war for sure. If nuclear war doesn't kill us, what happens after the nuclear war will. Well, even then we may not be dead. But we probably won't be much different than the cockroach after.

Hate to burst your bubble Billy but everytime you recite the Pledge of Allegiance you're pledging to a country based on socialistic society principals, and the guy who wrote it was a big socialist supporter? Doncha?

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There are only two things wrong with this great nation of ours, democrats and republicans!

Not necessarily in that order.

I would like to hope that nothing will, hopefully we will expand to other plantets in other galaxies many 1000's of years from now, but if it happens on this planet it would probally be from some massive nuclear war or a uncontrolable bacteria/virus

Well in previous extinction catastrophes it has been a culmination of several events which were out of the species control such as overpopulation, meteors etc etc

I think the same will apply to us.

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'May no obstacles arise on the path of enlightenment!
May the enlightened intention of Those Gone to Bliss, past, present and future, be realised,
May I neither be bewildered in migratory existence
Nor I lulled by the solitary quiescence [of nirvana]!
But may I liberate beings throughout the expanse of space!'

- Tibetan Book of the Dead by Padmasambhava

yeah

not sure here...are republicans more "Zombie" or "Bacteria" like?

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"Just cause you got the monkey off your back doesn't mean the circus has left town." - Carlin