Trump's tariff threat on China sinks dollar

By Karen Brettell and Amanda Cooper NEW YORK (Reuters) -The dollar dropped on Friday after U.S. President Donald Trump threatened to hike tariffs against China, reigniting concerns over how the trade war will impact the U.S. economy. Trump also said he may cancel a planned meeting with Chinese President Xi Jinping and complained on social media about what he called China's plans to hold the global economy hostage after China dramatically expanded its rare earths export controls on Thursday. The comments ...