Trump threatens new tariffs on US's trade partners amid economic fears

Donald Trump threatened to ramp up his economic assault on some of America's biggest trading partners on Thursday , vowing to impose new tariffs on countries that target products made in the US within weeks. The US will impose "reciprocal" duties, the president announced on Thursday. "We want a level playing field," he declared. No new specific tariffs were announced. Instead, Trump signed a presidential memorandum ordering the development of a comprehensive plan to address what the White House described as "longstanding imbalances" in the global economy. It is the latest bid by Trump to strain Washington's trade ties with…