This year, protesters from Minneapolis to Minsk demanded action from their governments. In the United States, demonstrations spurred change in criminal investigations, policy reform, and a national discourse about racial inequality. In Hong Kong, protests against mainland China's infringements upon the semi-autonomous city's civil liberties met a different beast: a despotic regime. Beijing stripped Hong Kong of its protections for free speech and dissent, effectively ending the arrangement known as one country, two systems. The death knell of a free Hong Kong...