Check out Roger Kimball’s essay in The New Criterion titled “Retaking the University: A Battle Plan” (go here). Here is an excerpt:
It is time to revisit several large issues. The issue of tenure, for example. An arrangement that was intended to protect academic freedom and intellectual diversity has mutated into a means of enforcing conformity and excluding the heterodox. For those few conservatives who have managed to obtain tenure, it doubtless functions to protect them. But for the faculty in general it seems to have become a prescription for political correctness and lassitude.