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From the BBC World Service: President Donald Trump has abruptly cut off all trade talks with America’s northern neighbor. Trump was responding to an anti-tariff ad paid for by the province of Ontario, which featured a clip of former President Ronald Reagan speaking negatively about tariffs. About three-quarters of Canada's exports go to the U.S.; many now face a 35% Levy. Plus, it’s been a turbulent week for gold prices, but what’s causing the recent downturn?