So…the USA is letting vaccinated foreign nationals in, but unvaccinated Americans now I have to have a test within 24 hours instead of 72, and also have to be tested once they RETURN to the USA?!?!

What on earth? how do they plan to enforce that one?

https://www.usatoday.com/story/travel/news/2021/09/20/us-international-travel-restrictions-travel-ban/8357843002/