A scarecrow-like mock anti-government protestor is pictured on a barricade between protestors and government forces on February 21, 2014 in Kiev. (Photo by Bulent Kilic/AFP Photo)

A boy stands on an airplane in the Christian Mpoko refugee camp on February 20, 2014 during sunset, in Bangui, Central African Republic. Interim President Samba Panza has vowed to “go to war” on the anti-balaka, who claim to seek vengeance for atrocities committed by a mainly Muslim rebel alliance, the Seleka, which temporarily seized power in March last year. The Seleka coup plunged the country into chaos, unleashing a wave of Muslim-Christian violence that has left thousands dead. Hundreds of thousands of people have also been displaced by the brutal surge of killings, mutilations, rapes and looting. (Photo by Fred Dufour/AFP Photo)

Opponents against the international airport project in the French western city of Notre-Dame-des-Landes pose for journalists with animal masks made to wear at a demonstration planned in three days in Nantes, on February 19, 2014, in Notre-Dame-des-Landes. The project was signed in 2010 and the international airport is supposed to open in 2017 near the city of Nantes. (Photo by Jean-Sebastien Evrard/AFP Photo)

New recruits attend a military training to be part of the “Free Syrian Army” in eastern al-Ghouta, near Damascus, on February 16, 2014. (Photo by Ammar al-Bushy/Reuters)

A model wears an accessory created by Anya Hindmarch during London Fashion Week Autumn/Winter 2014, in central London in central London, Tuesday, February 18, 2014. (Photo by Jonathan Short/Invision/AP Photo)

Opposition supporter Genesis Carmona is evacuated on a motorcycle after being shot in the head during a protest against Nicolas Maduro's government in Valencia, some 100 miles (160 km) from Caracas, February 18, 2014. A 22-year-old student from the central city of Valencia died on Wednesday after being shot in the head during an anti-government demonstration, her family said, the fifth victim of unrest in Venezuela. Genesis Carmona, who was studying tourism and was also a local beauty queen, was shot during a demonstration in Valencia on Tuesday, relatives told. (Photo by Mauricio Centeno-Notitarde/Reuters)

Children drag water containers as it snows in Kabul February 19, 2014. (Photo by Mohammad Ismail/Reuters)

An opposition demonstrator shouts for the National Bolivarian Police (BNP) to not fire tear gas at them as a member of the force, right, gestures after his superior ordered them to hold their fire, during clashes in Caracas, Venezuela, Saturday, February 15, 2014. Venezuelan security forces backed by water tanks and tear gas are dispersing groups of anti-government demonstrators who tried to block Caracas' main highway Saturday evening. (Photo by Fernando Llano/AP Photo)

Men in loincloths participate in the Hadaka Matsuri, or Naked Festival at Saidaiji Temple on February 15, 2014 in Okayama, Japan. In this one of the most vibrant festivals in Japan, some 9,000 men battle to grab a pair of lucky sticks thrown by priests. (Photo by Trevor Williams/Getty Images)

Lebanese men carry an wounded man at the site of an explosion, near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Wednesday, February 19, 2014. A blast in a Shiite district in southern Beirut killed at least two people on Wednesday, security officials said – the latest apparent attack linked to the civil war in neighboring Syria. (Photo by Hussein Malla/AP Photo)

Canada's Brady Leman falls off a jump after crashing in the men's ski cross final at the Rosa Khutor Extreme Park at the 2014 Winter Olympics, Thursday, February 20, 2014, in Krasnaya Polyana, Russia. (Photo by Sergei Grits/AP Photo)

Comeptitors, from left, Canada's Marielle Thompson, Switzerland's Sanna Luedi, and Australia's Katya Crema take a jump during a women's ski cross quarterfinal at the Rosa Khutor Extreme Park, at the 2014 Winter Olympics, Friday, February 21, 2014, in Krasnaya Polyana, Russia. (Photo by Sergei Grits/AP Photo)

A sculpture made from the parts of guns and other weapons titled “Charro Jalisco” stands on exhibit in the Zocalo of Mexico City, Saturday, February 15, 2014. (Photo by Marco Ugarte/AP Photo)

Norway's Ingvild Flugstad Oestberg, left, and Marit Bjoergen celebrate winning the gold after the women's cross-country team sprint competitions at the 2014 Winter Olympics, Wednesday, February 19, 2014, in Krasnaya Polyana, Russia. (Photo by Matthias Schrader/AP Photo)

Models display Autumn/Winter designs by Carlos Diez during Madrid Fashion Week, in Madrid, Spain, Monday, February 17, 2014. (Photo by Andres Kudacki/AP Photo)

Thai policewomen march while guarding the Command Management for Peace and Order (CMPO) Friday, February 21, 2014 in Bangkok, Thailand. Angry farmers driving hundreds of tractors called off a threatened protest at Thailand's main airport Friday, offering a reprieve to the country's embattled prime minister and to travelers fearing a repeat of a major 2008 blockade of the airport. (Photo by Wason Wanichakorn/AP Photo)

Supporters of Afghan presidential candidate Abdullah Abdullah listen to his speech during a campaign rally in Jalalabad, Afghanistan, Tuesday, February 18, 2014. Eleven Afghan presidential candidates are campaigning in the presidential election scheduled for April, 2014. (Photo by Rahmat Gul/AP Photo)

Norway's gold medal winner Joergen Graabak, Norway's silver Magnus Hovdal Moan and Germany's Bjoern Kircheisen, from front to back, rest after the cross-country portion of the Nordic combined individual Gundersen large hill competition at the 2014 Winter Olympics, Tuesday, February 18, 2014, in Krasnaya Polyana, Russia. (Photo by Dmitry Lovetsky/AP Photo)

Palestinians scuffle with Israeli soldiers during a demonstration against the closure of the main downtown street in the center of the West Bank city of Hebron, Friday, February 21, 2014. Shuhada street was shut after a 1994 mosque massacre when a settler shot and killed 29 Muslim worshippers. The military closed it citing security reasons. (Photo by Nasser Shiyoukhi/AP Photo)

Britain's skip Eve Muirhead, right, embraces Anna Sloan after defeating Switzerland to win the women's curling bronze medal at the 2014 Winter Olympics, Thursday, February 20, 2014, in Sochi, Russia. (Photo by Robert F. Bukaty/AP Photo)

A visitor looks at a photo from Karl Lagerfeld's series “Moderne Mythologie 2013” in the exhibition “Feuerbach's Muses – Lagerfeld's Models” in the Kunsthalle in Hamburg, Germany. (Photo by Maja Hitij/EPA)

A Russian fan wears face paint while attending men's curling competition at the 2014 Winter Olympics, Monday, February 17, 2014, in Sochi, Russia. (Photo by Robert F. Bukaty/AP Photo)

People gather at the site where a passenger train derailed after a blast in Pakistan's southern Kashmore district February 16, 2014. At least five passengers, including four children, were killed after a bomb derailed the moving train, according to the police. The train was on its way to the northwestern city of Peshawar from the southern port city of Karachi. (Photo by Abid Rehman/Reuters)

Anti-government protesters attack police officers near a tent encampment in Kiev February 16, 2014. Ukrainian opposition protesters ended a two-month occupation of city hall in Kiev on Sunday and opened a road to limited traffic, meeting an amnesty offer aimed at easing a stand-off over President Viktor Yanukovich's rule. (Photo by Kudymets Maksym/Reuters)

Cillian O'Rourk, three, at the Dublinia exhibition centre in Dublin, on February 18, 2014, for the launch of World Book Day which takes place in Ireland on March 6th. (Photo by Niall Carson/PA Wire)

Riot police patrol the Santinho beach next the Costao do Santinho hotel ahead of the 2014 FIFA World Cup in Florianopolis, Santa Catarina state, February 19, 2014. (Photo by Sergio Moraes/Reuters)

Cara Delevingne models The Cara Delevingne Collection created by Mulberry at London Fashion Week Autumn/ Winter 2014 on Sunday, February 16, 2014 at Claridges in London. (Photo by Richard Chambury/AP Images/Invision)

A Hezbollah civil defense worker extinguishes a burned car at the site of an explosion, near the Kuwaiti Embassy and Iran's cultural center, in the suburb of Beir Hassan, Beirut, Lebanon, Wednesday, February 19, 2014. A blast in a Shiite district in southern Beirut killed at least two people on Wednesday, security officials said – the latest apparent attack linked to the civil war in neighboring Syria. (Photo by Hussein Malla/AP Photo)

A gold Lamborghini luxury sports car is displayed at a mall with a price tag of 4.9 million yuan (US $808,000) in Beijing, China, Monday, February 17, 2014. (Photo by Ng Han Guan/AP Photo)

A riot police officer lies motionless after a massive head injury during a clash with protesters in Bangkok, Thailand, on February 18, 2014. Hundreds of riot police attempted to clear out anti-government protest sites around Thailand's capital on Tuesday, triggering clashes that left three people dead and 57 others injured. (Photo by Wally Santana/Associated Press)

Brazilian Marines practice raiding a ship during a military exercise in Guanabara Bay, in Rio de Janeiro, Brazil, Wednesday, February 20 2014. Brazil’s Navy said that the operations being carried out this week in preparation for the 2014 FIFA World Cup are the largest exercises in its history. FIFA director of security Ralf Mutschke has said that FIFA is satisfied with the level of security that will be provided by Brazilian authorities, and guarantees that football's governing body “is highly committed to ensuring the safety and security for fans, players and any other stakeholder involved in our event”. (Photo by Leo Correa/AP Photo)

Neil Hulme from E.Oldroyd and Sons Ltd, harvests forced rhubarb by traditional methods using only candle light ahead of the Wakefield Rhubarb Festival this weekend. (Photo by Lynne Cameron/PA Wire)

A woman sits on a bench on a flooded Thames riverside path in Staines, southern England February 17, 2014. Engulfing towns and countryside, floods have triggered the biggest rescue operation in Britain since World War Two. Tens of thousands have been left without power, others evacuated from their homes after the wettest January on record pushed river banks to breaking point. There is now concern that the unrelenting bad weather could be severe enough to dent Britain's economic recovery. (Photo by Toby Melville/Reuters)

The King float parades during the Nice Carnival on February 15, 2014 in Nice, southeastern France. The Carnival, starting from February 14 until March 4, 2014, celebrates the “King of Gastronomy”. (Photo by Lionel Cironneau/AP Photo)

Winter Olympics: Curling star Eve Muirhead believes Team GB are on the brink of something special. (Photo by David Davies/PA Wire)

A member of the p*ssy Riot punk group – who have feuded with Vladmir Putin's government for years – looks on during a press conference in Sochi, Russia, on February 20, 2014. (Photo by David Goldman/Associated Press)