Permean or other oil basins would kill little while destroying US energy sector.

That’s way too big for a single nuke. It’s a geological layer. Even multiples wouldn’t do it. Maybe we could just sink the country while we’re at it. /s

The US is a bank masquerading as a country. Bond vigilantes are real, and crediblity for more debt weak.

Banks don’t have an army or the ability to tax you. Also, the US is still way behind Japan, for example.