Jonathan Haidt in After Babel:
In May 2014, Greg Lukianoff invited me to lunch to talk about something he was seeing on college campuses that disturbed him. Greg is the president of FIRE (the Foundation for Individual Rights and Expression), and he has worked tirelessly since 2001 to defend the free speech rights of college students. That almost always meant pushing back against administrators who didn’t want students to cause trouble, and who justified their suppression of speech with appeals to the emotional “safety” of students—appeals that the students themselves didn’t buy. But in late 2013, Greg began to encounter new cases in which students were pushing to ban speakers, punish people for ordinary speech, or implement policies that would chill free speech. These students arrived on campus in the fall of 2013 already accepting the idea that books, words, and ideas could hurt them. Why did so many students in 2013 believe this, when there was little sign of such beliefs in 2011?
More here.