US Bluesky users should be careful with what they post: all posts are archived. And I guess European social media users planning to visit the US should be aware that their posts can be used against them by the Trump regime too.
https://www.404media.co/the-200-sites-an-ice-surveillance-contractor-is-monitoring/
Two ('leftist') German and one English tourist have already been detained after entering the US with valid travel documents. https://www.welingelichtekringen.nl/samenleving/twee-duitse-en-een-engelse-toeriste-in-grensdetentie-is-het-voor-linkse-europeanen-nog-veilig-naar-de-vs-te-gaan
@Sustainable2050 well… Germans start to feel the same pressure and pain, non-Europeans experience since decades.
All three cases are somehow explainable (ESTA travelers getting themselves three more months in the US by doing a one-day trip to Tijuana, green cards being flagged because of offenses).
A German passport was a decent protection against problems for decades and this has changed now.