I'd say that incident falls under political extremism, not religious extremism. Which is all the more reason to check people's individual beliefs rather than th

I'd say that incident falls under political extremism, not religious extremism. Which is all the more reason to check people's individual beliefs rather than their race or ethnicity. Anyone from any background can be radicalized; some formatting is more prone to it than others. Sikhs, as you say, are pretty chill. Not being pacifist doesn't mean you want to go out and kill anyone.