A tech war with China continues under a Biden administration, with profound implications for the world's biggest tech companies like TikTok, Huawei, Facebook and Tesla. Chinese students and scientists in the US grapple with increasing scrutiny as accusations of espionage intensifies. Over in China, how are American tech companies located there, responding to the tech war? If the tech war continues unabated, what is the cost of bifurcation of global technology?