U.S., China resume high-level trade talks as non-core concessions seen possible

WASHINGTON (Reuters) - Top U.S. and Chinese negotiators met on Thursday for the first time since late July to try to ease a bitter 15-month trade war and business groups expressed optimism that they might be able to find enough common ground to delay a U.S. tariff hike scheduled for next week.Lower-level "early harvest" agreements on issues such as currencies and copyright protections were possible despite increased irritants between the world's two largest economies, a U.S. Chamber of Commerce..