/edit adding some articles
The United States last tested a nuclear weapon in 1992.
https://thehill.com/policy/defense/5580424-trump-directs-pentagon-to-start-testing-nuclear-weapons/
/edit adding some articles
The United States last tested a nuclear weapon in 1992.
https://thehill.com/policy/defense/5580424-trump-directs-pentagon-to-start-testing-nuclear-weapons/
IIRC, USSR tested an idea about excavation with nukes and concluded that it is impractical and requires too much decontamination work afterward.
USA already did nuclear fracking in the 60s
https://www.youtube.com/watch?v=Rsu0lHkOIFg
The USA and the USSR both did nuclear fracking
I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy:
they also fired a nuke into that infinite underground fire pit in the Uzbekistan
https://en.wikipedia.org/wiki/Urtabulak_gas_field?wprov=sfla1