According to Reuters, Canada laid down a tough line ahead of talks on modernizing NAFTA on Monday, suggesting it could walk away if the United States pushed to remove a key dispute-settlement mechanism in the trade deal. Foreign Minister Chrystia Freeland, giving the most substantive outline yet of Canada’s goals, said she was “very optimistic” the negotiations would be a success. North American Free Trade Agreement members Canada, Mexico and the United States hold their first session in Washington on Wednesday. Read more…