Oh gosh, it might be like the muni's losing their AAA after the insurers fail! Which means the sky is fall ... hey how come nothin's happening? Those ratings are valid and important, the rating agencies told me so!
Taking the tongue out of my cheek though, obviously the healthcare/social security can't continue. Which just means they'll be cut back severely at the last minute by whichever president can't pass the hot potato to his/her successor... baby boomers that didn't save and lost the value of their homes they were counting on, then having to shoulder the unexpected healthcare/lack of social security burden is not going to be pretty.