Standing in the House of Commons this week, Canada’s prime minister, Justin Trudeau, apologized after a war veteran who fought alongside the Nazis was invited into the country’s parliament, called a “hero” and celebrated with two standing ovations. Trudeau said all lawmakers “regret deeply” having stood and clapped – “even though we [did] so unaware of the context”, adding that the event was a disservice to the memory of millions “targeted by the Nazi genocide”. “Every year there are fewer and fewer Holocaust survivors to share firsthand the horrors of what they experienced,” said Trudeau. “And it is therefore incumbent...