The importance of Free Speech: Why being offended is not a state of grace.

Ian McEwan, the award-winning author of more than 20 novels and short stories, including Atonement, delivered Dickinson’s Commencement address on Sunday, May 17 of this year.

I encourage you to listen to all of this graduation speech. He talks about exceptions to free speech, which include "racists", at about the 12 minute mark.