Argentina's President Cristina Fernandez waves to supporters after a ceremony at the government house in Buenos Aires, Argentina, Wednesday, January 22, 2014. Fernandez spoke in public for the first time Wednesday since December 10. Her 42-day silence had been feeding speculation in Argentina about her health in the wake of the head surgery she underwent in October. Some opponents have questioned who is running the country. (Photo by Natacha Pisarenko/AP Photo)

A protester breaks up a mannequin on the roof of a burned truck during clashes with police in Kiev, on January 23, 2014. (Photo by Sergei Grits/Associated Press)

Protesters use a large slingshot to hurl a Molotov cocktail at police in central Kiev, Ukraine, Thursday January 23, 2014. Thick black smoke from burning tires engulfed parts of downtown Kiev as an ultimatum issued by the opposition to the president to call early election or face street rage was set to expire with no sign of a compromise on Thursday. (Photo by Sergei Grits/AP Photo)

Assistants help an Orthodox believer to take a bath in the icy waters of a lake during the celebration of the Epiphany holiday near the village of Sretinka some 40km from Bishkek, on January 19, 2014. For Christians, the Epiphany celebrates the baptism of Christ by John the Baptist in the river Jordan. (Photo by Vyacheslav Oseledko/AFP Photo)

A protester points a handgun during a clash with police in central Kiev, Ukraine, Wednesday, January 22, 2014. (Photo by Efrem Lukatsky/AP Photo)

A troupe of Chinese Dragon dance performers make their way to a top of the Sydney Harbor bridge with The Sydney Opera House in the background, in Sydney, Australia, Tuesday, January 21, 2014. A troupe of dragon dancers and musicians made their way to the top of the Sydney icon ahead of Chinese New Year celebrations which falls on Friday, January 31. (Photo by Rob Griffith/AP Photo)

Models present creations by designers Yassen Samouilov and Livia Stoianova as part of their Haute Couture Spring/Summer 2014 fashion show for On Aura Tout Vu in Paris January 20, 2014. (Photo by Benoit Tessier/Reuters)

Flood victims are pulled on inflatable tire tubes as they are evacuated from heavy flooding brought by tropical depression “Agaton”, in Butuan, in the southern Philippine island of Mindanao January 20, 2014. Floods and landslides caused by tropical depression “Agaton” have killed 40 people and more than 500,000 people are displaced in Mindanao, the National Disaster Risk Reduction and Management Council reported on Sunday. (Photo by Erik De Castro/Reuters)

Paramilitary policemen wrestle as they take part in a winter training session at a military base in Chaohu, Anhui province, January 20, 2014. (Photo by Reuters/China Daily)

A pro-European integration protester catches fire during clashes with police in Kiev January 20, 2014. Ukrainian President Viktor Yanukovich named a top aide to organize peace talks with the opposition after violent clashes between police and protesters in Kiev, but the opposition warned him on Monday not to play for time. With tension still high, about 1,000 protesters confronted police on Monday near Kiev's main government headquarters and hurled projectiles. (Photo by Vasily Fedosenko/Reuters)

This composite image released by NASA shows a self-portrait that was taken by the NASA rover Opportunity weeks before its tenth landing anniversary on Mars. The rover's panoramic camera (Pancam) took the images during the interval January 3, 2014, to January 6, 2014, a few days after winds removed some of the dust that had been accumulating on the rover's solar panels. Opportunity landed on the red planet on Jan. 24, 2004 and is still exploring. Its twin Spirit stopped communicating in 2010. (Photo by AP Photo/NASA)

Aymara Indian women listen to Bolivia's President Evo Morales deliver his state-of-the-nation address as they sit outside Congress in La Paz, Bolivia, Wednesday, January 22, 2014. (Photo by Juan Karita/AP Photo)

Lebanese men try to extinguish fire from burning cars following an explosion on January 21, 2014 in Haret Hreik, a south Beirut neighbourhood considered a stronghold of the Lebanese Shiite movement Hezbollah. Two people were killed in the apparent suicide car bombing, Lebanon's National News Agency said. (Photo by AFP Photo/STR)

Bangladeshi Muslim pilgrims offer Friday prayers on the first day of the three-day World Congregation of Muslims, or Biswa Ijtema, on the banks of the River Turag in Tongi, 20 kilometers (13 miles) north of the capital Dhaka, Bangladesh, Friday, January 24, 2014. Hundreds of thousands of Muslims join the weekly prayer Friday during the annual three-day event that is one of the world's largest religious gatherings being held since 1960's to revive Islamic tenants. It shuns politics and calls for peace. (Photo by A. M. Ahad/AP Photo)

A firefighter checks a crater made by a blast at the police headquarters in downtown Cairo, Egypt, on January 24, 2014. A car bomb struck the main police headquarters Friday in the heart of Cairo, killing several people in a hugely symbolic attack on the eve of the third anniversary of the 2011 uprising that toppled long time autocratic ruler Hosni Mubarak. (Photo by Amr Nabil/Associated Press)

A North Hudson County Fire Department firefighter walks in front of an iced covered vehicle near a building where a a six-alarm fire was put out by officials, Friday, January 24, 2014, in Union City, N.J. The fire began in one residential apartment building on 19th Street around 11:30 p.m. Thursday and quickly spread to two adjacent buildings. Approximately 50 residents, some wearing nothing more than robes and pajamas, were evacuated to a school that the Red Cross set up as a temporary shelter. (Photo by Julio Cortez/AP Photo)

Christ the Redeemer statue is silhouetted against a setting sun in Rio de Janeiro, Brazil, Wednesday, January 22, 2014. Rio de Janeiro's famed Christ statue is being repaired after two fingers and its head were chipped during recent lightning storms. Workers began examining the 125-foot statue on Tuesday. After inspecting the damage up close, officials say it'll take about four months to repair. (Photo by Felipe Dana/AP Photo)

A worker inspects the Christ the Redeemer statue which was damaged during lightning storms in Rio de Janeiro January 21, 2014. (Photo by Levy Ribeiro/Brazil Photo Press/Agência o Dia)

A protester guards the barricade in front of riot police in Kiev, Ukraine, on January 24, 2014. Protesters have seized a government building in the capital while also maintaining the siege of several governors' offices in the country's west, raising the pressure on the government. (Photo by Efrem Lukatsky/Associated Press)

The body of a man who was killed by a mob that believed him to be a Seleka Muslim militia member lies on the ground near the PK11 checkpoint as French soldiers walk by in Bangui, Central African Republic, Friday, January 24, 2014. Christian militiamen killed a prominent Muslim former government minister who supported last year's rebellion, officials said, raising the specter of further sectarian bloodshed as tensions deepened Friday. (Photo by Jerome Delay/AP Photo)

An Egyptian policeman reacts as he walks through the site of a car bomb explosion that struck the Cairo police headquarters on January 24, 2014, killing at least four people in an early morning blast, police and health ministry officials said. The attack came a day before police were to deploy across the capital for the third anniversary of the uprising against Hosni Mubarak, with Islamists calling for mass protests against the new regime. (Photo by Mahmud Khaled/AFP Photo)

Christian people crowd a bush taxi on a road 55km north of Bangui as they are on their way to the capital where they expect to sell some products on the market on January 19, 2014. Fresh fighting broke out in the strife-torn Central African Republic on the eve of an announcement on Sunday of the candidates seeking to become the new interim president. Sectarian violence has gripped the landlocked country after a March 2013 coup launched by the mostly Muslim Seleka rebels, and the UN has warned that the bloodshed could turn into genocide. (Photo by Eric Feferberg/AFP Photo)

A member of Swiss special police forces stands on the roof of the Kongress Hotel next to the Congress Center in Davos, Switzerland, Tuesday, January 21, 2014. The world's financial and political elite will head this week to the Swiss Alps for 2014 gathering of the World Economic Forum at the Swiss ski resort of Davos. (Photo by Michel Euler/AP Photo)

A resident stands on the roof of his home that is submerged in heavy flooding brought by tropical depression “Agaton”, in Butuan city on the southern Philippine island of Mindanao January 21, 2014. (Photo by Erik De Castro/Reuters)

A model presents a creation by designers Tamara Ralph and Michael Russo for their fashion house Ralph & Russo, as part of their Haute Couture Spring/Summer 2014 fashion show in Paris January 23, 2014. (Photo by Benoit Tessier/Reuters)

French soldiers of the Sangaris Operation come across civilian supporters of the Anti-Balaka Christian militia during a patrol in Bangui on January 25, 2014. The new president of the Central African Republic Catherine Samba Panza set to work to choose members of a government capable of ending horrific inter-religious violence and bringing order to the country. (Photo by Issouf Sanogo/AFP Photo)

An Afghan child plays in the outskirts of Herat on January 23, 2014. Economic development is considered a vital weapon to stop the country from sinking back into civil war and to stem Islamist extremism after 100,000 international combat troops pull out. (Photo by Aref Karimi/AFP Photo)

An Indian woman vendor carries plastic containers for sale as she walks on a street in Hyderabad, India, Friday, January 24, 2014. One plastic container sells at approximately one US dollar and the woman manages to earn about 2-3 dollars a day. (Photo by Mahesh Kumar A./AP Photo)

An Indonesian boy jumps into the water as he plays at a flooded part of the city in Jakarta, Indonesia, Wednesday, January 22, 2014. Seasonal rains and high tides in recent days have caused widespread flooding across much of Indonesia, an archipelago of more than 17,000 islands that's home to 240 million people. (Photo by Dita Alangkara/AP Photo)

Indonesian men help a motorist to cross a flooded street on a raft in Pamanukan, Indonesia, Monday, January 20, 2014. Seasonal rains and high tides in recent days have caused widespread flooding across much of Indonesia. (Photo by AP Photo/Kusumadireza)

Female police trainees and their male counterparts practise firing their weapons at a shooting range during a refresher training programme in Najaf January 20, 2014. (Photo by Alaa Al-Marjani/Reuters)

A woman speaks as she kneels down in front of a line of riot police in the center of Kiev on January 24, 2014. Ukrainian protesters today expanded their protest camp in Kiev closer to the administration of President Viktor Yanukovych, after crisis talks to end Ukraine's worst crisis since its 1991 independence ended in deadlock. After five days of clashes that activists say left five dead, Ukraine's three main opposition leaders held several hours of talks with Yanukovych late on January 23 but the minor concessions they announced were greeted with derision by protesters. (Photo by Sergei Supinsky/AFP Photo)

Simon Gerrans (C) of Australia receives a kiss on the podium after being presented the leader's jersey after stage one of the Tour Down Under in Adelaide on January 21, 2014. (Photo by Mark Gunter /AFP Photo)

Orthodox priests pray as they stand between pro-European Union activists and police lines in central Kiev, Ukraine, on January 24, 2014. A top opposition leader on Thursday urged protesters to maintain a shaky cease-fire with police after at least two demonstrators were killed in clashes this week, but some in the crowd appeared defiant, jeering and chanting “revolution” and “shame”. (Photo by Sergei Grits/Associated Press)

This picture taken on January 20, 2014 shows villagers gathering to receive their share of one million yuan (USD165,000) paid out in year-end bonuses by a tea company at their village in the suburb of Jinan, east China's Shandong province. The biggest payout amounts to 200,000 yuan as the villagers have been growing tea since 2003. (Photo by AFP Photo)

The morning moon is framed by the crests of Mt. Pelmo in San Vito di Cadore in the Italian Alps, on January 23, 2014. (Photo by Domenico Stinellis/Associated Press)

Revellers wear costumes as they stretch whilst welcoming others to Morning Glory, at a venue in Hackney, London, January 22, 2014. Morning Glory is a nightclub which operates once a month from 6:30 to 10:30 am, at which revellers drink fruit smoothies, coffee and dance to high energy music, sometimes in their sleepwear. Revellers also enjoy yoga and massages, before changing into their work clothing and heading off to their day jobs. (Photo by Andrew Winning/Reuters)

A pair of Vincent Van Gogh's Sunflower paintings hang side-by-side and are studied by twins Edgar and Gabriel, and Eva and Ellie (no surnames supplied), before going on show to the general public on 25th January-27th April 2014, at the National Gallery in Trafalgar Square in central London. (Photo by John Stillwell/PA Wire)