After 9/11 came the Patriot Act. And American citizens officially became potential enemies of the state.
https://www.infowars.com/posts/fema-camps-for-american-dissidents/
ADL considered scrapping its US police training trips to Israel, decided not to
https://www.timesofisrael.com/adl-considered-scrapping-its-us-police-training-trips-to-israel-but-decided-not-to/