US has a Doomsday Plan

"...under the new rule, a majority of living congressmen no longer will be needed to do business under "catastrophic circumstances.''

Instead, a majority of the congressmen able to show up at the House would be enough to conduct business, conceivably a dozen lawmakers or less.

The circumstances include "natural disaster, attack, contagion or similar calamity rendering Representatives incapable of attending the proceedings of the House.''

I doubt that in a 2012 situation they'd be too effective, but the reduced government could quite easily freak out and launch a nuke or two.

For me it is interesting that they acknowledge the possibility that someone major disaster could decimate their governmental ranks, but beyond working out who will run the show, they have made no survival provisions...