We don't hear much about his wall with Mexico anymore, but Trump seems to be building a digital wall to shut out Chinese tech. WeChat and TikTok are the two victims to his latest ban. On the episode, Cindy Yu talks to Chinese business expert Duncan Clark, author of Alibaba, and Rui Ma, host of the TechBuzz China podcast. They tell Cindy about how WeChat has created a cashless society in China, and why banning it would be more significant than banning TikTok.