Sharke, you knew help was coming. Webb has it right - most major cities have 3-4 days of food stockpile, as well as fuel (not just for cars but for power, water, etc.). After that - well, there ain't no civilization on a hungry belly. It would be like the zombie apocalypse but w/ fast moving people. You don't have to worry, tho, not much. about the only thing that would bring such a condition on w/o killing most city folk is an EMP. And fortunately, most of the kind of people that would do such a thing are, to put it mildly, too ... technically deficient to accomplish that.
More likely is the kinda slower rot we had in the 70s - gas lines and 10% inflation. You know how to put in dent in the US IOUs? 4 years of 10% inflation means the $50,000 every man woman and child in America, regardless of religion race or age, owes via the government, is only worth 1/2 as much in real terms. If you happen to Chinese creditors too bad. If you happen to have saved money for retirement, sucker. If you are working, raises never seem to keep up w/ inflation. And don't forget the killer rabbits of the 70s.
As for the greatest generation - I feel bad for them but feel worse for their children - our generation. They started social security so their own folks didn't have to live when them when they got old and didn't have to have them die in the spare family bedroom like their grandparents did. Then they started Medicare, where the average worker pays in $110,000 and takes out $350,000. It is a good racket as long as you can find a sucker. I don't think are children are going to be so ... accommodating.
Cheer up, these are the good times before the reckoning comes around.
But if you want financial advice, it is never too late to get into commodities. You know, the things those inflated dollars take more of to buy. Tangible things like oil (a bit late for gold, it is already falling). And you know the one thing they can never make more of really? Land. So when the zombies come you'll have somewhere to go.