Riot police walk through tear gas as protesters hold a demonstration against a controversial extradition bill in Hong Kong on July 28, 2019. - Tens of thousands of pro-democracy protesters defied authorities to hold an unsanctioned march through Hong Kong, a day after riot police fired rubber bullets and tear gas to disperse another illegal gathering, plunging the financial hub deeper into crisis. (Photo by Vivek Prakash / AFP) (Photo credit should read VIVEK PRAKASH/AFP/Getty Images)
