On May 11, Wesleyan President Michael Roth writes in The Wall Street Journal about the need for colleges and universities to proactively cultivate intellectual diversity on campus. While student protests over controversial speakers have dominated headlines of late, he writes: The issue, however, isn’t whether the occasional conservative, libertarian or religious speaker gets a chance to speak. That is tolerance, an appeal to civility and fairness, but it doesn’t take us far enough. To create deeper intellectual and political diversity, we need an affirmative-action program for the full range of conservative ideas and traditions, because on too many of our campuses they seldom…