There are no gold bugs at the Federal Reserve.

Even after a nuclear apocalypse, Cold War-era Fed officials thought there would be a demand and use for cash.

In a fascinating article, Paleofuture details a 135,000 square foot facility built in 1969 that was designed to be used by the Fed in a nuclear war. It housed $4 billion in US fiat currency in what was reportedly the world's largest single-floor vault at the time.

Even at the time, many politicians were asking what good it would be to have $4 billion after a nuclear war.