Protests are not an unusual sight at McGill University in Montreal. Student activism is something of a vaunted tradition at our school. But March’s Israeli Apartheid Week was not a peaceful civil rights protest. No one was hurt, as far as I know, but rhetoric can be just as damaging. The same week as the McGill demonstration, a radicalized teenager filmed himself ripping down and burning an Israeli flag in front of a Montreal Jewish day school. He did not injure anyone, but his actions represented a powerful and deeply unsettling statement. As I approached the McGill library, I heard...