Very embarrassing for a major research unversity.  Penn faculty will need to watch their mouths!  Somehow Northwestern, a roughly peer university to Penn, has managed to permit an actual Nazi apologist to remain on its faculty for decades, without violating its contractual obligations to uphold the AAUP requirements of academic freedom.  (I guess the writing was on the wall two years ago at Penn!)  Penn will end up in court over this.  They deserve to lose, and lose badly.