There's at least six months of history behind this kerfuffle, dating to spring when Milo Yiannopoulos of right-wing Breitbart News brought his political circus to DePaul. His event, sponsored by the school's College Republicans, ended in a melee because Yiannopoulos said some ugly things. Being offensive is what he does. In the aftermath, DePaul's president, the Rev. Dennis Holtschneider, acknowledged that allowing protesters to shut down a speaker was wrong. The right approach, he suggested, was to "welcome speakers, give their ideas a respectful hearing, and then respond with additional speech countering the ideas."