China prepares tech sector for battle as U.S. trade team arrives

China prepares tech sector for battle as U.S. trade team arrives: The first salvos in the budding U.S.-China trade conflict struck old-school sectors like steel and agriculture, but Beijing is now bracing for moves against its strategic ambitions in hi-tech. As a U.S. trade delegation heads to Beijing for talks starting Thursday, China's race to catch up to the United States…