In at least 12 states, including Arkansas, Ohio, Oklahoma, Tennessee, Texas and Wyoming, The Times identified Chinese-owned or -operated Bitcoin mines that together use as much energy as 1.5 million homes. At full capacity, the Cheyenne, Wyo., mine alone would require enough electricity to power 55,000 houses.
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Since Bitcoin mining was banned in China in May 2021 over concerns about energy usage and economic destabilization, Bitmain has shipped 15 times more equipment to the United States than it did in the previous five years combined
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When a company with Chinese origins broke ground last year on a crypto-mining operation in Cheyenne, Wyo., a team at Microsoft that assesses national security threats sounded the alarm.

Not only was the site next door to a Microsoft data center that supported the Pentagon — it was about a mile away from an Air Force base that controlled nuclear-armed intercontinental ballistic missiles.

I don't know why the U.S. continues to allow bitcoin mining. There is no good purpose for the activity and it wastes lots of resources.