So to the students at Dartmouth—and to the rest of us involved in protest politics—when “allies” chastise you for choosing a too public venue for protest, or for behaving in a manner they call obnoxious or (that favorite slur of the moderate) alienating, remember that being courteous and being effective aren’t necessarily compatible. You know what’s a graver sin than being rude? Not using every tool at your disposal to fight for what’s right.