Erdem Gunduz (center) stands in a silent protest along with others, at Taksim Square in Istanbul, Turkey, on June 17, 2013. Gunduz, a Turkish man, staged an eight-hour silent vigil on Istanbul's Taksim Square, scene of violent clashes between police and anti-government protesters in recent weeks, inspiring hundreds of others to follow his lead. #

A military policeman from the special unit Chope fires a tear gas gun late on June 19, 2013 to disperse protesters during clashes in the center of Niteroi, 10 km from Rio de Janeiro. Protesters battled police late on June 19, even after Brazil's two biggest cities rolled back the transit fare hikes that triggered two weeks of nationwide protests. #

Protesters carry placards as they protest against the visit of U.S. President Barack Obama to Pretoria, South Africa, June 28, 2013. Obama heads to South Africa today, hoping to see ailing icon Nelson Mandela, after wrapping up a visit to Senegal. #

A girl symbolizing the Ukrainian Constitution is "crucified on the cross by the acting power" during a performance called by Guy Fawkes activists in front of the Constitutional Court building in Kiev, Ukraine, on June 27, 2013. The activists call on Ukrainians to take action to defend the Constitution ahead of Constitution Day held on June 28. #

Protesters rally during a demonstration in central Sofia, Bulgaria, on June 25, 2013. Bulgaria's president said on Monday he would hold talks with all political parties on how to bring an end to weeks of protest rallies against graft and organized crime that have paralyzed politics in the Black Sea nation. #

Protesters rally in front of the parliament during a demonstration in central Sofia, on June 20, 2013. Bulgaria's parliament dismissed powerful media figure Delyan Peevski from his post as head of national security on Wednesday, hoping the move would put an end to protest rallies against the country's fragile three-week-old government. #

A protester gestures towards the government building during a demonstration in central Sofia, on June 25, 2013. Thousands of mainly younger Bulgarians have been staging daily rallies in Sofia and other cities demanding the resignation of the three-week-old Socialist-led government over its bungled bid to impose a media mogul as head of national security without debate. #

Protesters wearing Guy Fawkes masks march through Bangkok's shopping district, on June 23, 2013. Several thousand people marched through central Bangkok to protest against the former prime minister Thaksin Shinawatra and the current government led by his sister Yingluck Shinawatra. #

Margo Frutier (left) and another activist from women's rights group FEMEN jump over a car as they protest during a visit by Tunisia's Prime Minister Ali Larayedh near the European Commission in Brussels, Belgium, on June 25, 2013. #

Activist Margo Frutier from women's rights group FEMEN is detained by a security guard after staging a protest near the European Commission during a visit by Tunisia's Prime Minister Ali Larayedh in Brussels, on June 25, 2013. According to a statement released on their Facebook on Wednesday, Frutier was momentarily unconscious after armed security personnel tried to stop her. The women's rights group says that Frutier's health has deteriorated and has difficulties breathing. #

Students clash with riot police during a demonstration against the government to demand changes in the public state education system in Valparaiso city, about 121 km (75 mi) northwest of Santiago, Chile, on June 13, 2013. Chilean students have been protesting against what they say is profiteering in the state education system. #

A student is knocked off a fence by a jet of water sprayed by riot police, during a protest against the government to demand changes in the public state education system, in Santiago, Chile, on June 26, 2013. #

A woman gestures at police officers blocking a street during a protest in Phnom Penh, Cambodia, on June 17, 2013. The residents of Boeung Kak Lake have been embroiled in a long-running land dispute with a real estate development firm in the capital, and are also appealing for the release of another resident, Yorm Bopha, from prison. #

Riot police move away from flames made from a Molotov cocktail thrown by protesters, in violent clashes during a student demonstration in Santiago, Chile, on June 26, 2013. Hooded protesters hurled Molotov cocktails, stoned cars, looted a restaurant to use chairs for barricades and burned tires, blocking rush hour traffic along some of Santiago's main roads. Teachers, dock workers and copper miners joined students in a nationwide demonstration to demand education reform and wider distribution of Chile's copper wealth. #

A Bahraini girl holds up a blood-stained shirt and a picture of a youth jailed in connection with anti-government protests in Musalla, Bahrain, on June 13, 2013. Dozens of women turned out for the rally demanding freedom for women prisoners and jailed relatives. The picture identifies the youth as "Prisoner Hussein Abbas Mehdi" and says he was arrested April 21, 2013. #

A Bahraini riot-police car is hit by a petrol bomb during clashes with demonstrators following the funeral of Hussein Abdullah, in the village of Saar, west of Manama, on June 26, 2013. #

Protesters with their mouths taped take part in a protest in solidarity to the employees of Greek state broadcaster ERT, in Thessaloniki, Greece, on June 21, 2013. Greece's fragile coalition government was left bruised but standing after a junior party decided to pull its two ministers from the cabinet following a falling-out over the unpopular closure of state broadcaster ERT. #

A riot police officer throws a tear gas canister at students during a demonstration against the government to demand changes in the public state education system in Valparaiso city, Chile, on June 26, 2013. #

Jean Wilkins Dember, 83, joins in the protest of the 500th execution in Texas outside the Texas Department of Criminal Justice Huntsville Unit, where the death chamber is located, on June 26, 2013, in Huntsville, Texas. Kimberly McCarthy was executed Wednesday, making her the 500th person executed in Texas since 1982. #

Riot police clash with demonstrators during a protest on the streets of Belo Horizonte, Brazil, on June 26, 2013. Tens of thousands of Brazilians have taken to the streets this month in the biggest protests in 20 years, fueled by an array of grievances ranging from poor public services to the high cost of World Cup soccer stadiums and corruption. #

Japanese Buddhist Monk and Anti-nuclear campaigner Toyoshige Sekiguchi prays at the outer security gate leading to the G8 summit in Enniskillen, Northern Ireland, on June 18, 2013. Sekiguchi, from Japan, spent the last nine days walking from Belfast to Enniskillen carrying a banner and beating a small drum. The 48-year-old said he has been marching for peace since 2009, and last year walked 200 miles from Pittsburgh, Pennsylvania, to the USA's G8 summit venue at Camp David, in Maryland. #

Members of the National Elderly Unit clash with police during a protest in front of the Social Security building to demand their pensions in Managua, Nicaragua, on June 19, 2013. Hundreds of elderly people are demanding the government give them a partial pension as they did not qualify for a full pension because the unemployed affected the country since civil war. #

A cyclist rides naked in a public fountain in front of the Royal Palace as others bathe in Madrid, on June 15, 2013. Cyclists demonstrated against car-dominated streets, to promote the use of bicycles, and to highlight the danger due to lack of cycling lanes in the capital. #

An animal rights activist is branded with the number 269 in Prague, Czech Republic, on June 26, 2013. Animal rights activists from 269 Life movement have adopted the act of human branding to raise awareness about animal rights. The movement was launched with a public branding in Tel Aviv last year and has since mushroomed around the globe, with brandings held in Italy, the United States, Argentina and beyond. The group's name is derived from a number branded on a calf that activists encountered at an Israeli dairy farm last year. #

A banner reading "Healthcare 100 percent Public and Universal", partly seen, as protesters hold hands and march during a demonstration against government-imposed austerity measures and labor reforms in the public healthcare sector in Madrid, Spain, on June 23, 2013. Some thousands of Madrid's residents and medical workers angered by budget cuts and plans to part privatize bits of their cherished national health service protested on the streets. #

Unknown anti-gay activist hits Russia's gay and LGBT rights activist Nikolai Alexeyev (center) during an unauthorized gay rights activist rally in Moscow, on May 25, 2013. Moscow city authorities on May 15 turned down demands for a gay rights rally, but Alexeyev said he would fight a ban in court. #

Egyptians hold up signs as they dive during a protest against Egyptian President Mohamed Mursi, underwater in Colored Canyon in Sharm el-Sheikh, about 465 km (289 mi) southeast of Cairo, on June 28, 2013. The text on the signs reads "Go Away". #

Afghans chant anti-government slogans after burning a truck, believed to be owned by foreigners during a demonstration in Kabul, Afghanistan, on June 24, 2013. The protests centered around government plans to develop a subdivision in the capital on land that has long been occupied by squatters. Demonstrators blocked two main roads out of the city, and said they would continue their protests until the government gave them somewhere else to live. #

Demonstrators wearing orange jumpsuits line up against the north fence of the White House in Washington, District of Columbia, on June 26, 2013, as they protest the Guantanamo Bay military detention facility. #

An activist of Ukraine's Internet party gestures as he demands the American authorities stop the pursuit of National Security Agency leaker Edward Snowden at a protest near the US Embassy in Kiev, Ukraine, on June 27, 2013. #

Kosovo police splashed with paint clash with hardline opposition members protesting a deal with Serbia in capital Pristina, Kosovo, on June 27, 2013. Kosovo lawmakers had voted in favor of an agreement to normalize relations with Serbia. #

An injured demonstrator screams at police during overnight clashes between riot police and demonstrators in Medan, North Sumatra province, on June 18, 2013, during protests against a fuel price hike. Indonesian lawmakers in Jakarta on June 17, approved a budget paving the way for the first hike in fuel prices since 2008 amid nationwide protests against the measure where police fired tear gas and rubber bullets at stone-throwing protesters. #

Pakistani workers of the political party Muttahida Qaumi Movement (MQM), hold placards during a protest to condemn the killing of foreign tourists by militants, in Karachi, Pakistan, on June 23, 2013. Islamic militants wearing police uniforms shot to death many foreign tourists and one Pakistani before dawn as they were visiting one of the world's highest mountains in a remote area of northern Pakistan that has been largely peaceful, officials said. #

A woman is arrested during an act of civil disobedience outside the House and Senate chambers during "Moral Monday" protests at the General Assembly in Raleigh, North Carolina, on June 24, 2013. Protesters showing up in growing numbers are angry about the rightward tilt of the state since Republicans gained control of the state legislature and the governor's mansion, the first time they've held both branches of government at the same time since 1870. #

A woman is struck by a water cannon during protests in Kizilay square in central Ankara, Turkey, on June 16, 2013. The unrest, in which police fired teargas and water cannon at stone-throwing protesters night after night in cities including Istanbul and Ankara, left four people dead and about 5,000 injured, according to the Turkish Medical Association. #

Protesters try to stop an armored crowd control truck from which the riot police fire water cannon at Taksim Square in Istanbul, on June 22, 2013. Turkish riot police fired water cannon to clear thousands of protesters from Istanbul's Taksim Square on Saturday, the first such confrontation there in nearly a week. #

A protester prepares to throw stones at riot police on a street near Taksim Square in Istanbul, on June 22, 2013. Turkish riot police fired water cannon and teargas to disperse thousands of anti-government demonstrators in central Istanbul, as Prime Minister Tayyip Erdogan castigated those behind protests he said had played into the hands of Turkey's enemies. #

Soccer balls representing lawmakers lay in rows outside Congress as part of a protest against spending on the Confederations Cup soccer tournament in Brasilia, Brazil, on June 26, 2013. The wave of protests that hit Brazil on June 17 began as opposition to transportation fare hikes, then expanded to other causes including anger at high taxes, poor services and high World Cup spending, before coalescing around the issue of rampant government corruption. #

Protesters run holding Molotov cocktails to throw at police in violent clashes during a student demonstration in Santiago, Chile, on June 26, 2013. Teachers, dock workers and copper miners joined students in a nationwide demonstration to demand education reform and wider distribution of Chile's copper wealth. #

Bangladeshi women hold photographs of their missing relatives as they form a human chain and demand compensation for the dead and missing workers of a garment factory building collapse, in Savar, near Dhaka, Bangladesh, on June 24, 2013. #

Egyptian women chant slogans against President Mohammed Morsi during a demonstration in in Tahrir Square in Cairo, Egypt, on June 27, 2013. Cairo is bracing for mass protests against the government planned for Sunday. #

Vehicles queue at a gas station during a fuel shortage in Cairo, on June 26, 2013. Fears of a showdown in the streets between President Mohamed Mursi's Islamist supporters and a broad coalition of the disaffected have led people to stock up on food and buy up fuel supplies. #

Anti-Mursi protesters carry a banner saying "leave", while chanting anti-Mursi and anti-Muslim Brotherhood slogans in Tahrir square in Cairo, on June 28, 2013. Egypt's leading religious authority warned of "civil war" on Friday and called for calm after a member of the ruling Muslim Brotherhood was killed ahead of mass rallies aimed at forcing the president to quit. #