An aerial view of cows gathering in a circle on a plot of deforested Amazon rainforest near the city of Uruara, Para state, Brazil, April 22, 2013. Picture taken April 22, 2013. REUTERS/Nacho Doce 

An aerial view of cows (R) gathering in a circle on a plot of deforested Amazon rainforest near the city of Uruara, Para state, Brazil, April 22, 2013. Picture taken April 22, 2013. REUTERS/Nacho Doce 

Protesters hold placards as they attend a demonstration demanding Hong Kong's leaders to step down and withdraw the extradition bill, in Hong Kong, China, June 16, 2019. REUTERS/Athit Perawongmetha 

A man waves a European flag at a rally held by The People's Vote, calling for another Brexit referendum, ahead of an EU summit, in London, Britain, April 9, 2019. REUTERS/Gonzalo Fuentes 

Supporters of AK Party gesture in Istanbul, Turkey April 1, 2019. REUTERS/Kemal Aslan 

EU supporters, calling on the government to give Britons a vote on the final Brexit deal, participate in the 'People's Vote' march in central London, Britain March 23, 2019. REUTERS/Kevin Coombs 

An EU supporter, calling on the government to give Britons a vote on the final Brexit deal, participates in the 'People's Vote' march in central London, Britain March 23, 2019. REUTERS/Peter Nicholls 

Supporters of Venezuelan opposition leader Juan Guaido, who many nations have recognized as the country's rightful interim ruler, wave their hands in El Tigre, Venezuela March 22, 2019. REUTERS/Carlos Jasso 

Students take part in a "youth strike to act on climate change" demonstration in Nice, France, March 15, 2019. REUTERS/Eric Gaillard 

Students take part in a "youth strike to act on climate change" demonstration in Nice, France, March 15, 2019. REUTERS/Eric Gaillard 

Demonstrators are hit by water cannon used by riot police during a rally demanding an end to sexism and the gender violence in the education in Valparaiso, Chile May 16, 2018. REUTERS/Rodrigo Garrido TPX IMAGES OF THE DAY 

Demonstrators take cover as they clash with riot policemen during a rally demanding an end to sexism and the gender violence in the education in Santiago, Chile, May 16, 2018. REUTERS/Ivan Alvarado 

Demonstrators are hit by water cannon used by riot police during a rally demanding an end to sexism and the gender violence in the education in Valparaiso, Chile May 16, 2018. REUTERS/Rodrigo Garrido 

Demonstrators are hit by water cannon used by riot police during a rally demanding an end to sexism and the gender violence in the education at Valparaiso, Chile May 16, 2018. REUTERS/Rodrigo Garrido 

A woman holds a candle during an opposition rally to mark the anniversary of the Chernobyl nuclear disaster in Minsk, Belarus April 26, 2018. REUTERS/Vasily Fedosenko 

An LGBT activist attends a rally against Homophobia and Transphobia in Kiev, Ukraine, May 17, 2017. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

Supporters of same-sex marriage take part in a rally outside Presidential Office Building in Taipei, Taiwan December 10, 2016. REUTERS/Fabian Hamacher 

Supporters of same-sex marriage take part in a rally outside Presidential Office Building in Taipei, Taiwan December 10, 2016. REUTERS/Fabian Hamacher 

Supporters of same-sex marriage take part in a rally outside Presidential Office Building in Taipei, Taiwan December 10, 2016. REUTERS/Fabian Hamacher 

Protesters light flares and carry Polish flags during a rally, organised by far-right, nationalist groups, to mark the anniversary of Polish independence in Warsaw, Poland, November 11, 2016. REUTERS/Kacper Pempel 

Members of hardline Muslim groups attend a protest against Jakarta's incumbent governor Basuki Tjahaja Purnama, an ethnic Chinese Christian running in the upcoming election, in Jakarta, Indonesia, November 4, 2016. REUTERS/Beawiharta TPX IMAGES OF THE DAY

Supporters of those arrested after the Malheur National Wildlife Refuge attend a rally in Salt Lake City, Utah, U.S. March 5, 2016. REUTERS/Jim Urquhart SEARCH "JIM OATH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro next to a poster of him in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro next to a poster of him in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron TPX IMAGES OF THE DAY

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron

A protester with a sign reading 'revocatory' takes part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Henry Ramos Allup (bottom C), president of the National Assembly and deputy of the Venezuelan coalition of opposition parties (MUD) takes part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Opposition supporters take part in a rally against Venezuela's President Nicolas Maduro's government in Caracas, Venezuela, October 26, 2016. REUTERS/Christian Veron 

Supporters rally with Republican U.S. presidential nominee Donald Trump in St. Augustine, Florida, U.S. October 24, 2016. REUTERS/Jonathan Ernst 

Women take part in a rally, the closing event of the March of Hope, a 2-week-long event organised by Women Wage Peace, a non-political movement calling for a peaceful solution to the Israeli-Palestinian conflict and women's participation in such a solution, outside Israeli Prime Minister Benjamin Netanyahu's office in Jerusalem October 19, 2016. REUTERS/Baz Ratner 

People take part in a rally, the closing event of the March of Hope, a 2-week-long event organised by Women Wage Peace, a non-political movement calling for a peaceful solution to the Israeli-Palestinian conflict and women's participation in such a solution, outside Israeli Prime Minister Benjamin Netanyahu's office in Jerusalem October 19, 2016. REUTERS/Baz Ratner 

People take part in a rally, the closing event of the March of Hope, a 2-week-long event organised by Women Wage Peace, a non-political movement calling for a peaceful solution to the Israeli-Palestinian conflict and women's participation in such a solution, outside Israeli Prime Minister Benjamin Netanyahu's office in Jerusalem October 19, 2016. REUTERS/Baz Ratner 

Women take part in a rally, the closing event of the March of Hope, a 2-week-long event organised by Women Wage Peace, a non-political movement calling for a peaceful solution to the Israeli-Palestinian conflict and women's participation in such a solution, outside Israeli Prime Minister Benjamin Netanyahu's office in Jerusalem October 19, 2016. REUTERS/Baz Ratner 

Protesters rally during another night of protests over the police shooting of Keith Scott in Charlotte, North Carolina, U.S. September 24, 2016. REUTERS/Mike Blake 

Protesters rally in front of the police station during another night of protests over the police shooting of Keith Scott in Charlotte, North Carolina, U.S. September 24, 2016. REUTERS/Mike Blake 

A policewoman stands guard during a protest rally organised by the #Bring Back Our Girls (BBOG) campaigners in Abuja, Nigeria August 25, 2016. REUTERS/Afolabi Sotunde 

Turkish demonstrators rally against the coup attempt in Turkey at the White House in Washington, U.S., July 17, 2016. REUTERS/Joshua Roberts 

Turkish demonstrators rally against the coup attempt in Turkey at the White House in Washington, U.S., July 17, 2016. REUTERS/Joshua Roberts 

Turkish demonstrators rally against the coup attempt in Turkey at the White House in Washington, U.S., July 17, 2016. REUTERS/Joshua Roberts 

Turkish demonstrators rally against the coup attempt in Turkey at the White House in Washington, U.S., July 17, 2016. REUTERS/Joshua Roberts 

Turkish demonstrators rally against the coup attempt in Turkey at the White House in Washington, U.S., July 17, 2016. REUTERS/Joshua Roberts 

People take part in a rally organised by members of Ukrainian trade unions in Kiev, Ukraine, July 6, 2016. Participants demanded to increase the minimum standard of living and minimum official wages, and to abolish the raising of tariff rates, according to local media. REUTERS/Gleb Garanich 

People take part in a rally organised by members of Ukrainian trade unions in Kiev, Ukraine, July 6, 2016. Participants demanded to increase the minimum standard of living and minimum official wages, and to abolish the raising of tariff rates, according to local media. REUTERS/Gleb Garanich 

People take part in a rally organised by members of Ukrainian trade unions in Kiev, Ukraine, July 6, 2016. Participants demanded to increase the minimum standard of living and minimum official wages, and to abolish the raising of tariff rates, according to local media. REUTERS/Gleb Garanich 

People shout slogans during a rally organised by members of Ukrainian trade unions in Kiev, Ukraine, July 6, 2016. Participants demanded to increase the minimum standard of living and minimum official wages, and to abolish the raising of tariff rates, according to local media. REUTERS/Gleb Garanich 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

A street vendor sells sliced fruits during a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

A street vendor keeps the bees away from pastry he sells during a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

A street vendor sells a jacket in the colours of Venezuela's flag during a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo 

People attend a pro-government rally in Caracas, Venezuela, June 21, 2016. REUTERS/Mariana Bazo