U.S. stocks dropped about 2 percent on Friday, with the Dow falling more than 570 points, as U.S. President Donald Trump’s latest tariff threat on Chinese imports fueled increasing concern over a U.S. trade war with China. Stocks added to losses and hit session lows in afternoon trading after Federal Reserve Chairman Jerome Powell said the U.S. central bank will likely need to keep hiking interest rates to keep inflation under control and said it was too soon to know if rising trade tensions would hit the U.S. economy. Fears of a trade war since Trump announced tariffs on steel and aluminum imports more than a month ... (full story)