James Pierson and Naomi Schaefer Riley:

Today, most of the ferment on campus comes not from academic departments—even the most politically charged ones—but from diversity centers and the faculty and administrators who staff them. At Yale, for instance, the Afro-American Cultural Center hosts a “Black Solidarity” conference each year. Its Social Justice programming includes a Black Lives Matter series. The emphasis of these centers is not just academic study but social action.

Another such diversity outfit at Yale is the Intercultural Affairs Council, which sparked a controversy last October with an email to students warning them not to wear racially or culturally insensitive Halloween costumes. One contrarian lecturer made the mistake of disagreeing. Protests ensued. By the time the fuss was over, the university had committed $50 million for diversity training and recruiting.