A major controversy has erupted at Carleton University in Canada, where the school has decided to hire a man with a dark past to teach a course called "Social Justice in Action." This man, Hassan Diab, is a Lebanese-Canadian who has been convicted of a terrible crime that happened 44 years ago.

In 2023, a French court sentenced Diab to life in prison for his involvement in a deadly bombing at the Rue Copernic synagogue in Paris in 1980. A bomb planted on a motorcycle exploded outside the...