I have no fear of the USA going broke. Sure prices will rise and the USD will become the next peso. So what? Simply demand higher remuneration for labor to make up for inflation.
You don't have any experience with hyperinflation do you? Wages lag way behind prices. You also have to factor in how the govt will respond, most likely with price controls which means massive shortages, rationing and a burgeoning black market with crazy markups.
Better keep your pot dealers number safe. He'll probably be your grocer when the fiat empire comes tumbling down.