Are there any reasons why the US government (and/or departments thereof) couldn't retask the government supercomputers to mint huge quantities of Bitcoin?

It’s known that the government has massive supercomputers- CIA, NSA, Weather Bureau, etc.

Could the government utilize the vast computing resources it has and mint lots and lots of digital currency?

Taken to an extreme, could the US government (or for that matter, China or Russia) use their supercomputers and corner the market on that digital currency?