Female protesters, with pictures of Jordanian pilot Muath al-Kasaesbeh, chant slogans during a rally in Amman February 7, 2015. Jordan launched bombing raids against the Islamic State's positions in Syria and Iraq on Thursday in response to its brutal killing of a captured Jordanian pilot, military action that it continued on Saturday. (Photo by Muhammad Hamed/Reuters)

Director Sebastian Schipper and cast member Laia Costa jump as they arrive on the red carpet for the screening of their in competition film “Victoria” at the 65th Berlinale International Film Festival in Berlin February 7, 2015. (Photo by Stefanie Loos/Reuters)

People walk near a car covered with ash in town of Antigua, on the outskirts of Guatemala City, February 7, 2015. Guatemala's Fuego volcano belched black ash into the sky on Saturday, causing the government to evacuate 100 nearby residents and forcing the closure of the capital's international airport, President Otto Perez told reporters. The volcano, about 25 miles (40 km) southwest of the capital, forced the cancellation of several flights as Guatemala's main airport shut down and workers sought to clear the runways of ash. (Photo by Josue Decavele/Reuters)

Greek Presidential guards march at the monument of the unknown soldier in front of the Parliament building during a ceremonial change of guards in Athens February 8, 2015. Greece said on Saturday it had no short-term cash problem and that it will hand its European Union partners a comprehensive plan next week for managing the transition to a new debt deal. (Photo by Kostas Tsironis/Reuters)

Fisherman Alexander Romantsov looks out of the window of his plywood lodge, placed on the frozen surface of the Yenisei River over an ice hole for fishing at the beginning of winter, near the village of Anash, Novosyolovsky District of Krasnoyarsk region, Russia February 7, 2015. Some fishermen of the region equip such tiny lodges with mini coal and firewood-burning ovens and also install electricity taken from car accumulator batteries, which allow them to fish day and night in spite of severe frost. (Photo by Ilya Naymushin/Reuters)

A fisherman walks past a plywood lodge, placed on the frozen surface of the Yenisei River over an ice hole for fishing at the beginning of winter, near the village of Anash, Novosyolovsky District of Krasnoyarsk region, February 7, 2015. (Photo by Ilya Naymushin/Reuters)

A woman carries a piglet as she runs on ice during a running challenge in Changsha, Hunan province February 8, 2015. A total of 20 people participated in the challenge requiring them to choose a pig ranging between 15 kg and 115 kg in weight, and carrying it while running on a 20.15-metre-long ice track. The participants that complete the challenge will be rewarded with the pig they carried, local media reported. (Photo by Darwin Zhou/Reuters)

People buy firewood at a market place in Sanaa, Yemen February 8, 2015. According to local media, people are using firewood for cooking amid a shortage in cooking gas supplies. (Photo by Mohamed al-Sayaghi/Reuters)

An ultra-Orthodox Jewish boy walks in front of a garbage bin set on fire during a protest in Jerusalem's Mea Shearim neighbourhood, against the jailing of Jewish seminary students who failed to comply with a recruitment order, February 8, 2015. (Photo by Nir Elias/Reuters)

Sheikh Mohammed bin Rashid Al Maktoum, Vice-President and Prime Minister of the United Arab Emirates and ruler of Dubai, shakes hands with a robot as he inaugurates The Museum of Future Government Services, at the Government Summit in Dubai February 8, 2015. (Photo by Reuters/Prime Minister Media Office)

Sheikh Mohammed bin Rashid Al Maktoum (3rd L), Vice-President and Prime Minister of the United Arab Emirates and ruler of Dubai, is seen during the inauguration of The Museum of Future Government Services, at the Government Summit in Dubai February 8, 2015. (Photo by Reuters/Prime Minister Media Office)

Sheikh Mohammed bin Rashid Al Maktoum (3rd L), Vice-President and Prime Minister of the United Arab Emirates and ruler of Dubai, is seen during the inauguration of The Museum of Future Government Services, at the Government Summit in Dubai February 8, 2015. (Photo by Reuters/Prime Minister Media Office)

Wafi Dawood, the Chief of Strategy & Excellence of Knowledge & Human Development Authority of the Dubai Government competes with a ChessBot during the second day of the Government Summit in Dubai, United Arab Emirates, Tuesday, February 10, 2015. (Photo by Kamran Jebreili/AP Photo)

A humanoid robot designed and developed by Honda and named Asimo waves for the audience at the end of the company's presentation during the last day of the Government Summit in Dubai, United Arab Emirates, Wednesday, February 11, 2015. (Photo by Kamran Jebreili/AP Photo)

Fans buy national team merchandise ahead of the Ivory Coast's African Nations Cup final against Ghana, in Abidjan, February 8, 2015. (Photo by Luc Gnago/Reuters)

Team Volvo competes during the Quebec Winter Carnival ice canoe race on the St. Lawrence River in Quebec City, February 8, 2015. (Photo by Mathieu Belanger/Reuters)

Activists from the animal rights group AnimaNaturalis hold up signs during a demonstration against bullfights at Hemiciclo de Juarez monument in Mexico City February 8, 2015. The signs read, (C) “Enough! No more cruel traditions” and (L and R) “Bulls yes, matadors no”. (Photo by Edgard Garrido/Reuters)

Activists from the animal rights group AnimaNaturalis take part in a demonstration against bullfights at the Hemiciclo de Juarez monument in Mexico City, February 8, 2015. (Photo by Edgard Garrido/Reuters)

Firemen from the Anne Arundel County Fire Department search the wreckage of a Grumman AA-1 aircraft which officials said crashed shortly after take off from Tipton Airport in Odenton, Maryland, in this picture from Anne Arundel County Fire Department Deputy Chief Hoglander taken February 8, 2015. Two people were aboard the plane and were injured in the crash, county officials said. (Photo by Reuters//Anne Arundel County Fire Department Deputy Chief Hoglander)

A woman pulls a cart as her daughter sits on sacks of cans after they collected the cans from the streets behind the Royal Palace in Phnom Penh February 9, 2015. (Photo by Samrang Pring/Reuters)

A man rides a motorcycle near dried buffalo meat laid out by a shopkeeper, along a street in central Phnom Penh February 9, 2015. The dried buffalo meat is sold for $2.50 per plate, according to the shopkeeper. (Photo by Samrang Pring/Reuters)

A member of the Rastafarian movement waits for the unveiling of a statue of late reggae legend Bob Marley in Kingston February 8, 2015. Jamaicans started to celebrate the 70th anniversary of Marley's birth on Friday with a jamming session at his former home and a string of free concerts as the Caribbean island continues to wrestle over his place in its pantheon of heroes. Marley, who was born in Nine Miles, northwest Jamaica, died on May 11, 1981, in a Florida hospital from cancer, age 36. (Photo by Gilbert Bellamy/Reuters)

A member of the Rastafarian movement waits for the unveiling of a statue of late reggae legend Bob Marley in Kingston February 8, 2015. (Photo by Gilbert Bellamy/Reuters)

Women take a photograph of a statue of late reggae legend Bob Marley after it was unveiled in Kingston February 8, 2015. (Photo by Gilbert Bellamy/Reuters)

Yu Jietao (C), 26-year-old wood carver, drives his homemade wooden car along a street with his family, in Guangfeng county of Shangrao, Jiangxi province February 9, 2015. Yu spent over 100,000 yuan ($16,010) to build the wooden vehicle, which is approximately 4m-long (13.12 ft), 1.5m-wide (4.92 ft) and 1.5m-high. The car can travel as fast as 30 km (18.6 miles) per hour, local media reported. (Photo by Reuters/Stringer)

Yu Jietao, 26-year-old wood carver, sits in his homemade wooden car along a street in Guangfeng county of Shangrao, Jiangxi province February 9, 2015. (Photo by Reuters/Stringer)

Girls walk past a banner with a picture of Russian President Vladimir Putin along a bridge, in central Cairo February 9, 2015. Putin is due to arrive on Monday on his first visit to Egypt in ten years. (Photo by Asmaa Waguih/Reuters)

Egypt's President Abdel Fattah al-Sisi (R) walks with Russia's President Vladimir Putin (C) as they arrive at the opera house during Putin's visit in Cairo February 9, 2015. (Photo by Reuters/The Egyptian Presidency)

A woman walks past a branch of HSBC bank in London, February 9, 2015. British bank HSBC Holdings Plc admitted on February 8, 2015 failings by its Swiss subsidiary, in response to media reports it helped wealthy customers dodge taxes and conceal millions of dollars of assets. (Photo by Suzanne Plunkett/Reuters)

A visitor takes a picture of a floral display of goats made from chrysanthemum blooms ahead of the Lunar New Year at the Gardens by the Bay greenhouse in Singapore February 9, 2015. The Chinese Lunar New Year on February 19 will welcome the Year of the Sheep (also known as the Year of the Goat or Ram). (Photo by Edgar Su/Reuters)

Israeli police detain Palestinian protesters during a protest against what Palestinians say is land confiscation for Jewish settlements, in the West Bank village of Silwad near Ramallah February 9, 2015. (Photo by Mohamad Torokman/Reuters)

A Palestinian cave dweller sets handmade yoghurt out to dry, during the yearly yoghurt-making season, near the West Bank city of Hebron February 9, 2015. (Photo by Ammar Awad/Reuters)

SpaceX workers examine the unmanned Falcon 9 rocket carrying NOAA's (National Oceanic and Atmospheric Administration) Deep Space Climate Observatory Satellite as it lays horizontally on launch complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Florida February 9, 2015. Launch of the SpaceX rocket with a U.S. weather satellite bound for deep space was called off minutes before liftoff on Sunday due to a technical problem, officials said. Launch had been targeted for 6:10 p.m. EST (23:10 GMT) from Cape Canaveral Air Force Station in Florida. But about 2.5 minutes before liftoff, a problem cropped up with an Air Force radar system needed to track the rocket in flight. (Photo by Scott Audette/Reuters)

A photographer sets up a remote camera near the unmanned SpaceX Falcon 9 rocket, carrying NOAA's Deep Space Climate Observatory Satellite, at launch pad 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Florida February 10, 2015. Space Exploration Technologies will try again Tuesday to launch the rocket with the U.S. satellite intended to watch for threatening solar storms, NASA said on Monday. (Photo by Scott Audette/Reuters)

People walk on rubble as others try to put out a fire after what activists said were airstrikes followed by shelling by forces loyal to Syria's President Bashar al-Assad in the Douma neighborhood of Damascus, February 9, 2015. (Photo by Mohammed Badra/Reuters)

People try to put out a fire after what activists said were airstrikes followed by shelling by forces loyal to Syria's President Bashar al-Assad in the Douma neighborhood of Damascus, February 9, 2015. (Photo by Mohammed Badra/Reuters)

A boy stands on rubble as people try to put out a fire after what activists said were airstrikes followed by shelling by forces loyal to Syria's President Bashar al-Assad in the Douma neighborhood of Damascus, February 9, 2015. (Photo by Mohammed Badra/Reuters)

Drummers perform on “HeartBeat” by Stereotank, a Brooklyn-based design studio, which is the 2015 winning Times Square Valentine Heart produced by the Times Square Alliance, in New York City February 9, 2015. The interactive sculpture consisting of a massive heart that visitors are encouraged to move around and play various percussion instruments on, is installed at Times Square and open to the public until March 8. (Photo by Mike Segar/Reuters)

People play soccer on a street blocked by burning tyres during an anti-government protest in Port-au-Prince Feburary 9, 2015. Anti-government street protesters plan to shut down Haiti's capital for two days starting Monday as the country plunges deeper into political and economic crises even as many prepare for the annual Carnival, normally a time of peaceful revelry. Protest organizers warned residents of the capital to stay off the streets during the two-day strike over gasoline prices, saying that those who ventured out would risk their lives. (Photo by Andres Martinez Casares/Reuters)

A man does push-ups while guarding a goal post as he and others play soccer on a street during an anti-government protest in Port-au-Prince Feburary 9, 2015. (Photo by Andres Martinez Casares/Reuters)

Demonstrators stop a rider and his passenger on a motorcycle taxi at a roadblock during an anti-government protest in Port-au-Prince Feburary 9, 2015. (Photo by Andres Martinez Casares/Reuters)

People walk through one of the commercial main streets during an anti-government protest in Port-au-Prince Feburary 9, 2015. (Photo by Andres Martinez Casares/Reuters)

Fiat Chrysler assembly workers work on a partially assembled minivan at the Windsor Assembly Plant in Windsor, Ontario, February 9, 2015. The plant prepares to shut down for 14 weeks starting February 16 in preparation for Fiat Chrysler's next generation minivan. (Photo by Rebecca Cook/Reuters)

A Fiat Chrysler assembly worker works on the interior of a partially assembled minivan at the Windsor Assembly Plant in Windsor, Ontario, February 9, 2015. (Photo by Rebecca Cook/Reuters)