Protests and demonstrations

People attend a protest march in Moscow, Russia, the statue of famous Russian poet Alexander Griboyedov in the background, Saturday, Aug. 31, 2019. Hundreds of people are holding an unauthorized protest march in central Moscow, following recent demonstrations in which thousands were detained and many beaten by police. (AP Photo/Pavel Golovkin)

Exploded tear gas shells, thrown back by protestors, stand in flames by a police barricade in central Hong Kong, Saturday, Aug. 31, 2019. The mostly young, black-shirted protesters took over roads and major intersections in shopping districts as they rallied and marched. Police erected additional barriers and brought out two water cannon trucks near the Chinese government office and deployed at various locations in riot gear. (AP Photo/Jae C. Hong)

This photo released by the opposition Syrian Civil Defense rescue group, also known as White Helmets, which has been authenticated based on its contents and other AP reporting, shows a civil defense worker inspecting destroyed buildings after airstrikes hit the town of Jarjnas, in Idlib province, Syria. Syrian opposition activists said government warplanes have struck towns and villages in the northwestern province of Idlib including one near a Turkish observation post. (Syrian Civil Defense White Helmets via AP)

In this June 21, 2019, photo, pro-democracy activists Agnes Chow, left, and Joshua Wong march to police headquarters in Hong Kong. Demosisto, a pro-democracy group in Hong Kong posted on its social media accounts that well-known activist Joshua Wong had been pushed into a private car around 7:30 a.m. Friday, Aug. 30, 2019 and was taken to police headquarters. It later said another member, Agnes Chow, had been arrested as well. (AP Photo/Kin Cheung)

Pro-democracy activists Joshua Wong, left, and Agnes Chow, are escorted in a police van at a district court in Hong Kong, Friday, Aug. 30, 2019. Hong Kong police arrested well-known activist Wong and Chow, another core member of a pro-democracy group, Friday, and authorities denied permission for a major march in what appears to a harder line on this summer's protests. (AP Photo/Kin Cheung)

A no-entry road sign sits in front of the entrance to Britain's Parliament in London, Thursday, Aug. 29, 2019. Queen Elizabeth II has approved the U.K. government's request to suspend Parliament amid a growing crisis over Brexit. (AP Photo/Kirsty Wigglesworth)

In this photo released by China's Xinhua News Agency, armored personnel carriers of China's People's Liberation Army (PLA) pass through the Huanggang Port border between China and Hong Kong, Thursday, Aug. 29, 2019. Chinese state media has published photos of the country's Hong Kong-based troops' armored carriers and a patrol boat undertaking what they call a routine rotation. (Yuan Junmin/Xinhua via AP)

Greta Thunberg, a 16-year-old Swedish climate activist, waves after sailing in New York harbor aboard the Malizia II, Wednesday, Aug. 28, 2019. The zero-emissions yacht left Plymouth, England on Aug. 14. She is scheduled to address the United Nations Climate Action Summit on Sept. 23. (AP Photo/Mary Altaffer)

Greta Thunberg, a 16-year-old Swedish climate activist, speaks in front of a crowd of people after sailing in New York harbor aboard the Malizia II, Wednesday, Aug. 28, 2019. The zero-emissions yacht left Plymouth, England on Aug. 14. She is scheduled to address the United Nations Climate Action Summit on Sept. 23. (AP Photo/Mary Altaffer)