the February 1 riots at UC Berkeley, because they marked a turning point—an escalation of conflicts over campus speakers. Berkeley and its aftermath were the start of a new and more dangerous era. Since then, many students on the left have become increasingly receptive to the idea that violence is sometimes justified as a response to speech they believe is “hateful.” At the same time, many students on the right have become increasingly eager to invite speakers that are likely to provoke a reaction from the left.
