U.S. efforts to persuade allies of the security threat posed by Huawei secured an important victory recently with the United Kingdom’s decision to ban the Chinese telecommunications giant from its 5G network. The UK’s anti-Huawei policy, announced only two weeks after India became the first country to ban the Chinese video-sharing platform TikTok and 58 other Chinese apps, might appear to signal that the tide is turning against China’s global technological ambitions. More quietly, however,