Segregation was outlawed half a century ago, but some want to bring it back, at least on college campuses. And those seeking to bring segregation back are African-Americans — the very group hurt most by it in the early part of the 20th century.

Across the country last fall, college students began protesting alleged oppression and discrimination by white administrators and students. Most of the grievances centered around a lack of black professors or the names of certain buildings, but some protesters are asking for “safe spaces” where whites aren’t allowed.