Free Speech? Sure... so long as you are politically correct.

A professor at Connecticut College is under fire from students for a Facebook post, six months old but recently discovered, in which he likened Hamas to "rabid dogs."  He says it's a metaphor.  They say it's racism.
https://www.insidehighered.com/news/2015/03/25/students-criticize-administrations-response-what-they-term-hate-speech-professor

I say it's free speech and academic freedom.  Like Justice Scalia, I believe that the antidote to bad speech is more speech:
https://www.youtube.com/watch?v=UgQGJjQq4uk