Reading can be dangerous, some young people seem to believe.

"Colleges across the country this spring have been wrestling with student requests for what are known as 'trigger warnings,' explicit alerts that the material they are about to read or see in a classroom might upset them or, as some students assert, cause symptoms of post-traumatic stress disorder in victims of rape or in war veterans," the New York Times reports.

The Times notes that the warnings "have their ideological roots in feminist thought." At first glance this looks like just the latest politically correct excess, but it's distinct in some ways. For one, the faculty is resisting: "The debate has left many academics fuming, saying that professors should be trusted to use common sense and that being provocative is part of their mandate." Lisa Hajjar, a sociology professor at the University of California, Santa Barbara, tells the paper: "Any kind of blanket trigger policy is inimical to academic freedom. . . . The presumption . . . that students should not be forced to deal with something that makes them uncomfortable is absurd or even dangerous."

Students have demanded trigger warnings at Oberlin College, Rutgers University, the University of Michigan and George Washington University as well as UCSB. The Times reproduces an excerpt from an Oberlin "draft guide," which reads: "Triggers are not only relevant to sexual misconduct, but also to anything that might cause trauma. Be aware of racism, classism, sexism, heterosexism, cissexism, ableism, and other Issues of privilege and oppression. Realize that all forms of violence are traumatic, and that your students have lives before and outside your classroom, experiences you may not expect or understand." ("Cissexism" refers to prejudice in favor of men and women who identify themselves, respectively, as men and women.)

In a recent piece for The New Republic, Jenny Jarvie writes that "some consider [trigger warnings] an irksome tic of the blogosphere's most hypersensitive fringes." They started "in self-help and feminist forums to help readers who might have post traumatic stress disorder to avoid graphic content that might cause painful memories, flashbacks, or panic attacks." They've "been applied to topics as diverse as sex, pregnancy, addiction, bullying, suicide, sizeism, ableism, homophobia, transphobia, slut shaming, victim-blaming, alcohol, blood, insects, small holes, and animals in wigs. . . . Even The New Republic"--actually a TNR writer named Molly Redden--"has suggested the satirical news site, The Onion, carry trigger warnings."