Open this photo in gallery: Former prime minister Brian Mulroney speaks during an interview in Montreal, on Oct. 25, 2022.Ryan Remiorz/The Canadian Press Former prime minister Brian Mulroney delivered a passionate rebuke to antisemitism Thursday, saying hatred of Jews must be confronted by governments and citizens, to stamp out what he called “this noxious social cancer.” Speaking to the World Jewish Congress in New York, Mr. Mulroney said people should be able to criticize Israel strongly and defend the right of Palestinians to a viable homeland without being called antisemitic. But he warned antisemitism has been on the rise, especially...