Such as they may be …

… The Ethics of Higher Education - by Virginia Postrel.

As their faculties and administrations grow more intellectually homogeneous, today’s campuses risk turning fundamentalist: allowing no more dissent on political questions—in the classroom or out of it—than Bob Jones or Liberty University permits questioning the inerrancy of scripture or the creation of the world in six literal days. When you limit the range of debate and forbid certain questions, you stifle the creation of knowledge and, over time, erode both the purpose of the university and the character of its constituents.