Extremism does not stop at borders, and neither should our models

Zadegan, Milad SharafiGruda, DritjonJonason, Peter K.2026-06-052026-06-052026-05-263053aa8d-126a-49f0-b536-9da697c066dchttp://hdl.handle.net/10400.14/58001engExtremism does not stop at borders, and neither should our modelsletter to the editor10.1073/pnas.261093912310503962525342150074001777667500016