Pro-democracy protesters from HK Alliance hold placards of detained rights activists as they march towards the Chinese liaison office in Hong Kong on February 19, 2020, in protest against Beijings detention of prominent anti-corruption activist Xu Zhiyong. – Police in China have arrested Xu Zhiyong, a prominent anti-corruption activist who had been criticising President Xi Jinpings handling of the COVID-19 coronavirus. (Photo by ISAAC LAWRENCE / AFP) (Photo by ISAAC LAWRENCE/AFP via Getty Images)