It is to Ono's credit that he has re-instated the speaking engagement by Furlong.  Political correctness has run amok when all it takes is "an open letter," circulated by a disaffected student to derail a speaking engagement. 

We need to be mindful of the words of the author, Salman Rushdie:  "“Nobody has the right to not be offended. That right doesn't exist in any declaration I have ever read.  If you are offended it is your problem, and frankly lots of things offend lots of people."