A demonstrator catches fire after the gas tank of a police motorbike exploded during clashes in a protest against Venezuelan President Nicolas Maduro, in Caracas on May 3, 2017. Venezuela' s angry opposition rallied Wednesday vowing huge street protests against President Nicolas Maduro' s plan to rewrite the constitution and accusing him of dodging elections to cling to power despite deadly unrest. (Photo by Juan Barreto/AFP Photo)

A couple kiss in front of a barricade set by demonstrators during clashes with police following a protest condemning the arrest of rap singer Pablo Hasél in Barcelona, Spain, Thursday, February 18, 2021. Protests over the imprisonment of a rapper convicted for insulting the Spanish monarchy and praising terrorist violence have morphed for the third night in a row into rioting. Pablo Hasél began this week to serve a 9-month sentence in a northeastern prison. (Photo by Emilio Morenatti/AP Photo)

People observe a protest against a new citizenship law from a bus, in New Delhi, India, January 3, 2020. (Photo by Anushree Fadnavis/Reuters)

A sculpture made by activists on Lambeth bridge during the Extinction Rebellion protest in London, England on October 7, 2019. (Photo by Henry Nicholls/Reuters)

A demonstrator uses a slingshot during a protest against Chile's government in Santiago, Chile on November 8, 2019. (Photo by Pablo Sanhueza/Reuters)

An Extinction Rebellion activist takes part in a protest in Berlin, Germany on October 5, 2020. (Photo by Michele Tantussi/Reuters)

An Israeli police officer holds his weapon as he stands in front of an injured Israeli driver moments after witnesses said his car crashed into a Palestinian on a pavement during stone-throwing clashes near Lion's Gate just outside Jerusalem's Old City on May 10, 2021. (Photo by Ilan Rosenberg/Reuters)