A five-member U.S. Congressional delegation visited Taiwan on Sunday, on the heels of U.S. House Speaker Nancy Pelosi's trip to the island in early August. Earlier, the U.S. side talked about establishing a "guardrail" between China and the U.S. On that, Major General Meng Xiangqing, deputy director of the Strategic Research Institute under the National Defense University of the People's Liberation Army, tells CGTN's host Tian Wei that the "guardrail" proposed by the U.S. is one that allows it to conduct close-up reconnaissance along China's coast, to seek navigation hegemony under the pretense of navigation freedom, to have the right to challenge China yet disallow China to fight back.