Canadian Prime Minister Justin Trudeau is on tour in China to discuss trade, but experts say significant hurdles stand in the way of progress. Underlying the trip is the fact that Canada's trade prospects took a hit following U.S. President Donald Trump's threat in August to withdraw from the North American Free Trade Agreement. And as uncertainty shrouds the future of NAFTA — which ties together the U.S., Canada and Mexico — Trudeau has an "urgent" need to diversify his country's trade relationships, according to Jeremy Kinsman, a former ambassador of the country and a distinguished visiting diplomat at Ryerson ... (full story)