“The exercise was held from May 8 to 9, 2024, at the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, and at a Federal Emergency Management Agency (FEMA) site in Denver, Colorado.”
Article refers to a PDF of the report it’s based on:
https://www.jhuapl.edu/sites/default/files/2025-04/Space-Weather-TTX-Report-Summary-v3-FINAL.pdf
If it makes you feel better, even if you migrate to another country and gain citizenship, you still have to pay income taxes to the US.
You won’t have to pay anything unless you’re pulling in the equivalent of >$126,500 USD in foreign income. Then you’re taxed on what you make above that. My H&R Block lady here in Germany told me all about it when I file every year. And boy howdy is fuuuuucking stupid that I’m having to file US taxes every year. I could stop, but then everything falls apart for me.