There’s something rotten in American journalism schools. From a tendency toward bias to outright activism, journalism in higher education is not what it should be: a place to guide young writers through a liberal education that teaches them how to think, report, and write clearly. The University of North Carolina at Chapel Hill’s attempted hiring of Nikole Hannah-Jones this year is the latest in a line of incidents that show how far journalism schools have drifted away from what they should be. In 1904, famed editor and newspaper magnate Joseph Pulitzer published an essay in The North American Review defending...