U.S. policies that target Huawei and other Chinese telecom firms constitute “economic bullying” that will damage constituencies in the U.S. and run against U.S. principles, according to a Chinese official. “I would like to advise some people in the United States to lock all the doors in the name of ‘security’ and to imprison themselves,” Foreign Ministry spokesman Geng Shuang said on Monday, in an apparent swipe at U.S. concerns over the Chinese government’s potential ability to compromise the security...