Imagine teaching young people a course on the “politics of memory.” At the University of New Brunswick, there is such a course, taught by professor Donald Wright, historical biographer and past president of the Canadian Historical Association. “We look at the politics of statues’ naming and renaming,” explains the professor. “Should statues stay up; should statues come down?” he posits. And, he continues, “what do you do with a problem like Sir John A. Macdonald?” I’m curious: what do his students say? “Well,” Donald offers, “I can tell you that the young people say, ‘Take them down...