Canadian Prime Minister Justin Trudeau apologized Wednesday after a photo surfaced of the former teacher dressed in brownface during a 2001 school event. "I shouldn't have done that," he told reporters aboard his campaign plane. "I should have known better but I didn't and I'm really sorry." "I should have known better, but I didn't, and I'm really sorry.” Photo of Canadian PM Justin Trudeau wearing brownface at 2001 party ...