hus, while Chinese censors have declared the word Mubarak (along with “Egypt” and others) to be “sensitive” and have set up filters to delete any message that contains it, Chinese Web users, in their usual cat-and-mouse game, have invented witty substitutes. These include “Mu Xiaoping” and “Mu Jintao”—which, by playing on the names of China’s own autocrats, get around the censors and up the ante at the same time.