China today is Communist only in name. Beijing relies on moments such as a dispute with the Japanese or the US bombing of its embassy in Belgrade 20 years ago to whip up nationalistic sentiment. In Hong Kong, however, Beijing is playing a dangerous game by encouraging thundering editorials in Communist media against the city’s protests. HSBC and Standard Chartered have felt compelled to run advertisements in Hong Kong this week criticizing the protests. Young Hong Kong people desecrating Chinese flags have been caricatured in Chinese TV and social media. Now, public opinion in China may force it to deploy troops when it would be wiser to let the protests peter out as they did in 2014. Already, there is speculation that unless the protests end by September, Xi will be forced to act, largely to ensure the celebrations to mark the 70th anniversary of the founding of the People’s Republic goes off without a hitch.