BEIJING—Tensions have heated up in the relationship between the U.S. and China thanks to the proposal to ban TikTok over spying allegations. Experts claim that Chinese spies are using the app to steal all of America's top-secret dance moves. Authorities warn that this could be devastating should a dance battle heat up between the two nations, as the Chinese will already have learned how to "pop, lock, and drop it" American-style, robbing us of our chance to surprise them with a devastating dance move. Insiders say Chinese agents are working overtime watching TikTok videos and trying to copy Americans' best...