Protester

A protestor argues with police during a demonstration demanding better public services and protesting the money spent on the World Cup soccer tournament in Sao Paulo, Brazil, Thursday, June 12, 2014. Brazilian police  clashed with anti-World Cup protesters trying to block part of the main highway leading to the stadium that hosts the opening match of the tournament.

Rodrigo Abd/AP

A man argues with police during a demonstration on Thursday in São Paulo, Brazil, demanding better public services and protesting against the money spent on the World Cup football tournament

A Philippine policeman attempts to arrest a demonstrator

Ted Aljibe/AFP/Getty Images

A policeman confronts a demonstrator during protests near the venue of the World Economic Forum on East Asia in Manila, Philippines, on Thursday.

A masked pro-Russian protester poses inside a regional government building in Donetsk...A masked pro-Russian protester sits beside a dog as he poses for a picture inside a regional government building in Donetsk, eastern Ukraine April 25, 2014. Picture taken April 25, 2014. REUTERS/Marko Djurica (UKRAINE - Tags: POLITICS CIVIL UNREST ANIMALS PORTRAIT)

Marko Djurica/Reuters

A masked pro-Russia protester sits beside his dog inside a regional government building in Donetsk, eastern Ukraine  Read more

An anti-government demonstrator sit behind a barricade on February 21, 2014 at the Independent square in Kiev. Armed protesters stormed police barricades in Kiev on Thursday in renewed violence that killed at least 26 people and shattered an hours-old truce as EU envoys held crisis talks with Ukraine's embattled president. Bodies of anti-government demonstrators lay amid smouldering debris after masked protesters hurling Molotov cocktails and stones forced police from Kiev's iconic Independence Square -- the epicentre of the ex-Soviet country's three-month-old crisis.

Bulent Kilic/AFP

An anti-government demonstrator sits behind a barricade on Friday in the central square in Kiev, Ukraine. Ukraine’s president Viktor Yanukovich moved to defuse the country’s worst crisis since independence by accepting calls for snap presidential elections and constitutional changes that would curb powers of the presidency.

An anti-government protester kisses a police officer during a rally inside a compound of the Thai Royal Police Club in Bangkok February 21, 2014.

Athit Perawongmetha/Reuters

An anti-government protester kisses a police officer during a rally inside the compound of the Thai Royal Police Club in Bangkok on Friday

An anti-government protester gestures out of a bus window as he travels to an office for the Land Transportation Department in Nonthaburi province, on the outskirts of Bangkok...An anti-government protester gestures out of a bus window as he travels to an office for the Land Transportation Department in Nonthaburi province, on the outskirts of Bangkok, January 29, 2014. Hundreds of anti-government protesters travelled to the provincial office on Wednesday and demanded employees leave the building and suspend operations.  REUTERS/Nir Elias (THAILAND - Tags: CIVIL UNREST POLITICS TRANSPORT)

Nir Elias/Reuters

An anti-government protester gestures from of a bus window as he travels to an office of the land transportation department in Nonthaburi province, on the outskirts of Bangkok. Hundreds of anti-government protesters travelled to the provincial office on Wednesday and demanded employees leave the building and suspend operations. Read more

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev January 23, 2014. Ukrainian opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive.

David Mdzinarishvili/Reuters

A pro-European integration protester takes cover behind a makeshift shield at the site of clashes with riot police in Kiev, Ukraine. Opposition leaders emerged from crisis talks with President Viktor Yanukovich on Wednesday, saying he had failed to give concrete answers to their demands, and told their supporters on the streets to prepare for a police offensive

An anti-government demonstrator points his finger at a policeman as they talk through the gate of the Government House in Bangkok on December 12, 2013.  Political turmoil has been rocking the Thai capital for weeks, with protesters seeking to oust Prime Minister Yingluck Shinawatra and rid the kingdom of the influence of her brother, deposed former leader Thaksin.

Philippe Lopez/AFP

An anti-government demonstrator points his finger at a policeman as they talk through the gate of the Government House in Bangkok, Thailand

A Palestinian protester argues with Israeli soliders during a demonstration against Israeli settlers who set up tents at the main entrance of Tuqua village, near the West Bank village of Bethlehem, on November 22, 2013.

Musa Al-Shaer/AFP

A Palestinian protester and Israeli soldiers during a demonstration about Israeli settlers at the main entrance of Tuqua village, near the West Bank village of Bethlehem

Police detain an elderly demonstrator who was protesting against the Chinese justice system on August 21, 2013 outside the Intermediate People's Court in Jinan, Shandong Province where disgraced politician Bo Xilai will soon go on trial.  Once one of China's highest-flying politicians, Bo Xilai will find himself in a criminal dock August 22 on trial for bribery and abuse of power in the country's highest-profile prosecution in decades.

Mark Ralston/AFP

Police detain an elderly demonstrator protesting against the Chinese justice system on Wednesday outside the Intermediate People’s Court in Jinan, Shandong Province, where disgraced politician Bo Xilai will go on trial. Once one the top politicians in China, Mr Bo is accused of bribery and abuse of power. The trial, due to begin on Thursday, is the country’s highest-profile prosecution in decades