This is what happens when you don't vet the people you let into your country
Congratulations - that is both glib and facile. Bad shit like this happens even between citizens of the same nation. This is not a borders and migration issue. Characterising it as such has deeply harmful consequences which we’ve been seeing on a global scale in recent years, with alarming echoes of the run up to WW1 and WW2. If we fail to learn the lessons of history…