Because they are being hired to be authority figures for our children.
So9
no, thats not why. its a breeders decision who they entrust their offspring to, checks or no. background checks are necessary because the citizens of the us subsidize colleges and universities.
The college professors have forgotten something very important. They have been HIRED by the PARENTS who have sent their children to that particular college to provide a higher level of education to their children.
That in a nut shell is what a college education is all about.
Those EMPLOYEER/PARENTS have a right to know who is teaching their children. That goes beyond the bits of parchment that are hanging on office walls.
Those EMPLOYER/PARENTS have the right to review what they are getting for their money and if they are not satisfied they have the RIGHT to change colleges; or demand changes in that college.
Life was so easy when the student radicals of the 60s took control of higher education and they could collectively ignore the world.
Like life outside the ivy covered fortresses of the liberal left, many things have changed after September 11, 2001. Free market forces are a real bummer (to quote the old radical down the street).