I honestly do not know why anyone one would invite Bill Ayers anywhere. My guess is is that they thought they could get away with it under the guise of academic freedom. University donors are actually keeping tabs on what universities are doing and I for one am glad that this is the case!!
My alma mater wouldn't think twice about inviting a criminal like Ayers, so I'll never donate any money to the support of the school.
I wonder if the total costs of the liberals running the universities could ever really be quantified. I bet it's billions.