Beijing tries to undermine our freedoms, security, and prosperity in many ways. There are the overt dangers, of course: China's rising military power, its aggressive "wolf warrior" diplomacy, its cyberwarfare and transnational criminal activity, environmental pollution, intellectual theft, espionage, and more. There are others as well, some so subtle as to be nearly invisible, that have become woven into the fabric of everyday American life. The surveillance and data collection capabilities of TikTok offer just one example.