DELICATE FLOWERS: In College and Hiding From Scary Ideas.

At one point she went to the lecture hall — it was packed — but after a while, she had to return to the safe space. “I was feeling bombarded by a lot of viewpoints that really go against my dearly and closely held beliefs,” Ms. Hall said. . . .

But the notion that ticklish conversations must be scrubbed clean of controversy has a way of leaking out and spreading. Once you designate some spaces as safe, you imply that the rest are unsafe. It follows that they should be made safer. . . .

Universities are in a double bind. They’re required by two civil-rights statutes, Title VII and Title IX, to ensure that their campuses don’t create a “hostile environment” for women and other groups subject to harassment. However, universities are not supposed to go too far in suppressing free speech, either. If a university cancels a talk or punishes a professor and a lawsuit ensues, history suggests that the university will lose. But if officials don’t censure or don’t prevent speech that may inflict psychological damage on a member of a protected class, they risk fostering a hostile environment and prompting an investigation. As a result, students who say they feel unsafe are more likely to be heard than students who demand censorship on other grounds.