Riots

FILE - In this Tuesday, March 20, 2018 file photo, the website of the Telegram messaging app is displayed on a computer screen in Moscow, Russia. Russian opposition supporters in this summer’s anti-government protests are increasingly relying on an encrypted messaging app. Although officially banned in Russia, Telegram is still running, and experts say it’s harder to hijack than other popular platforms. (AP Photo/Alexander Zemlianichenko, File)

In this Saturday, July 27, 2019, photo, provided by Alexei Abanin, Olga Misik, member of the small, grassroots group Bessrochka, sits in front of police officers during an unsanctioned rally in the center of Moscow. Despite the group’s small numbers, its use of new digital tools and efforts to self-organize mark a shift in civil consciousness previously unseen in Russia. (Alexei Abanin via AP)

Students wear protective gear during a protest in Hong Kong, Monday, Sept. 2, 2019. Hong Kong has been the scene of tense anti-government protests for nearly three months. The demonstrations began in response to a proposed extradition law and have expanded to include other grievances and demands for democracy in the semiautonomous Chinese territory. (AP Photo/Kin Cheung)

Pro-democracy protestors gather outside the airport in Hong Kong, Sunday, Sept. 1, 2019. The operator of the express train to Hong Kong's airport has suspended service as pro-democracy protesters gathered there following a day of violent clashes with police. Protesters gathered at the airport after online calls to disrupt travel. (AP Photo/Kin Cheung)

A protestor uses a shield to cover himself as he faces policemen in Hong Kong, Saturday, Aug. 31, 2019. Protesters and police are standing off in Hong Kong on a street that runs through the bustling Causeway Bay shopping district. (AP Photo/Jae C. Hong)

Demonstrators shine laser pointers during a protest at the Yuen Long MTR station in Hong Kong, Wednesday, Aug. 21, 2019. Hong Kong riot police faced off briefly with protesters occupying a suburban train station Wednesday evening following a commemoration of a violent attack there by masked assailants on supporters of the anti-government movement. (AP Photo/Kin Cheung)

Occupy Central leader Benny Tai, center, talks to reporters outside the High court in Hong Kong Thursday, Aug.15, 2019. Tai, a top opposition leader imprisoned on public disorder charges was released on bail Thursday as Hong Kong's government attempts to quell a protest movement that has paralyzed parts of the territory, including its international airport, and led to hundreds of arrests. (AP Photo/Vincent Yu)

Policemen arrest a protester during a clash at the Airport in Hong Kong, Tuesday, Aug. 13, 2019. Riot police clashed with pro-democracy protesters at Hong Kong's airport late Tuesday night, a chaotic end to a second day of demonstrations that caused mass flight cancellations at the Chinese city's busy transport hub. (AP Photo/Vincent Yu)

A woman holds a Russian national flag in front of police during a protest in Moscow, Russia, Saturday, Aug. 10, 2019. some thousands of people rallied in central Moscow for the third consecutive weekend to protest the exclusion of opposition and independent candidates from the Russian capital's city council ballot. (AP Photo)