Photo taken on Sept. 24, 2015 shows the national flags of China (R) and the United States as well as the flag of Washington D.C. on the Constitution Avenue in Washington, capital of the United States. (Xinhua/Bao Dandan) The U.S. has in fact become a source of turbulence that undermines the current world order and a stumbling block hindering the democratization of international relations, Chinese State Councilor and Foreign Minister Wang Yi said. "What we want to tell the U.S. is that China-U.S. relations are not a zero-sum game conceived by the U.S. side," he said, noting that countries can...