A bloodstained icon of Jesus is seen amidst blood-soaked shattered glass atop a wrecked truck near the Donetsk airport, in this May 27, 2014 file photo. (Photo by Yannis Behrakis/Reuters)

A child looks out from the window of his home covered in graffiti painted by members of the OPNI collective, bearing references to the 2014 World Cup, in the Vila Flavia slum of Sao Paulo, in this May 28, 2014 file photo. (Photo by Nacho Doce/Reuters)

A malnourished South Sudanese child displaced by the fighting in Malakal, cries as he is washed by a nurse at a feeding centre run by Medicins sans Frontiers (MSF) in Kodok, Fashoda county, in this May 28, 2014 file photo. (Photo by Andreea Campeanu/Reuters)

An Iraqi Shi'ite girl watches television inside her house in the Al-Fdhiliya district, eastern Baghdad, in this May 3, 2014 file photo. (Photo by Ahmed Jadallah/Reuters)

Children play football in front of an abandoned train compartment next to a railway track in Dhaka, in this May 29, 2014 file photo. (Photo by Andrew Biraj/Reuters)

An Israeli soldier of the Caracal battalion stands next to backpacks after finishing a 20-kilometre (12-mile) march in Israel's Negev desert, near Kibbutz Sde Boker, marking the end of their training, in this May 29, 2014 file photo. (Photo by Amir Cohen/Reuters)

Wang Yirong of Hebei province rides his motorcycle in a desert during the China Taklimakan Rally and CCR Xinjiang Station, in Shanshan, Xinjiang Uighur Autonomous Region, in this May 31, 2014 file photo. (Photo by Reuters/China Daily)

Singer Rihanna arrives for the Council of Fashion Designers of America Awards (CFDA) at Lincoln Center in New York, in this June 2, 2014 file photo. (Photo by Carlo Allegri/Reuters)

Tens of thousands of people participate in a candlelight vigil at Hong Kong's Victoria Park, to mark the 25th anniversary of the military crackdown of the pro-democracy movement at Beijing's Tiananmen Square in 1989, in this June 4, 2014 file photo. (Photo by Paul Yeung/Reuters)

British D-Day veteran of the Normandy campaign Fred Glover, 88, of Brighton, poses while watching a display by 300 multinational paratroops in Ranville, France, in this June 5, 2014 file photo. (Photo by Chris Helgren/Reuters)

Israeli border policemen detain a Palestinian demonstrator during a protest near Damascus Gate in Jerusalem's Old City, in this June 5, 2014 file photo. (Photo by Ammar Awad/Reuters)

U.S. congressman Louie Gohmert speaks with three girls covered in white sheets, who escaped after being abducted in the remote village of Chibok, during a news conference in Lagos, in this June 5, 2014 file photo. (Photo by Akintunde Akinleye/Reuters)

Sikhs wield swords as they clash inside the complex of the holy Sikh shrine, the Golden Temple, in the northern Indian city of Amritsar, in this June 6, 2014 file photo. (Photo by Munish Sharma/Reuters)

Rafael Nadal of Spain cries during the trophy ceremony after defeating Novak Djokovic of Serbia during their men's singles final match to win the French Open tennis tournament at the Roland Garros stadium in Paris, in this June 8, 2014 file photo. (Photo by Jean-Paul Pelissier/Reuters)

A man sleeps in front of ATM machines on Paulista Avenue in central Sao Paulo, in this June 8, 2014 file photo. (Photo by Damir Sagolj/Reuters)

A makeshift soccer goalpost stands near Molweni, west of Durban, South Africa in this June 5, 2014 file photo. (Photo by Rogan Ward/Reuters)

A supporter of Afghan presidential candidate Abdullah Abdullah holds an Afghan flag after an election campaign rally in the Paghman district of Kabul, in this June 9, 2014 file photo. (Photo by Ahmad Masood/Reuters)

A man mourns the death of his relative, killed in Sunday's Taliban attack on Jinnah International Airport, outside a hospital morgue in Karachi, in this June 10, 2014 file photo. (Photo by Athar Hussain/Reuters)

Special Envoy of the United Nations High Commissioner for Refugees, actress Angelina Jolie (R), and her partner actor Brad Pitt, look at photographs of victims of violence at the End Sexual Violence in Conflict summit in London, in this June 12, 2014 file photo. (Photo by Lefteris Pitarakis/Reuters)

People sit on sofas as they watch the opening game of the 2014 World Cup between Brazil and Croatia, during a public viewing event at the Alte Foersterei stadium in Berlin, in this June 12, 2014 file photo. (Photo by Thomas Peter/Reuters)

A donkey transports ballot boxes and other election material on to polling stations which are not accessible by road in Shutul, Panjshir province, in this June 13, 2014 file photo. (Photo by Omar Sobhani/Reuters)

An African migrant sits on top of a border fence covered in razor wire between Morocco and Spain's north African enclave of Melilla, during a latest attempt to cross into Spanish territory, in this June 14, 2014 file photo. (Photo by Jesus Blasco de Avellaneda/Reuters)

A girl from the African Hebrew Israelite community, popularly known as “the Black Hebrews”, hides behind an adult during a celebration for the holiday of Shavuot in the southern town of Dimona, in this June 15, 2014 file photo. (Photo by Finbarr O'Reilly/Reuters)

North Korean leader Kim Jong Un (C) looks through a periscope of a submarine during his inspection of the Korean People's Army (KPA) Naval Unit 167, in this undated file photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on June 16, 2014. (Photo by Reuters/KCNA)

Boys watch a screening of the 2014 World Cup Group A soccer match between Brazil and Mexico, at the slum of Varjao on the outskirts of Brasilia, in this June 17, 2014 file photo. (Photo by Ueslei Marcelino/Reuters)