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Angry farmers from southern Greek Crete island clash with police in front of the parliament on December 20, 2013. Farmers staged a demonstration in Athens against the new property tax which imposes higher tax on the farming land. Lawmakers were on Friday voting on a contentious draft bill that foresees higher taxes on farmers. (Photo by Louisa Gouliamaki/AFP Photo)

A demonstrator reacts at a fountain that emulates the Iguazu Falls during a rally commemorating the 12th anniversary of the social and economic crisis that led to Argentine former President Fernando De la Rua's resignation, in Buenos Aires December 20, 2013. (Photo by Marcos Brindicci/Reuters)

Flowers are seen on the sands of a beach in Meco, near Sesimbra, on December 17, 2013, as people watch the waves after one university student died and five others are missing when the group of seven were swept away by a huge wave on a beach in Portugal on December 15. The group, students at a university in the capital, had rented a house for a weekend break at Moinho de Baixo beach in the Sesimbra region. One member of the group was able to get to shore and call for help. (Photo by Francisco Leong/AFP Photo)

Kashmiri Muslim girls learn martial arts inside indoor stadium on December 16, 2013 in Srinagar, the summer capital of Indian administered Kashmir, India. As the number of crimes against women has risen in the region, girls from different age groups and backgrounds have taken up martial arts and other self defence courses to thwart attackers. Many believe after the barbaric rape and murder of a para-medic student last year on this day in the Indian capital of New Delhi, women in the Muslim majority state have taken to various martial arts forms like Thang-ta, a weapon-based Indian Martial art for protection. (Photo by Yawar Nazir/Getty Images)

Firemen try to put down the fire on a 25-floor uninhabited building in a shopping district in Guangzhou on December 16, 2013 in Guangdong province, China. The fire started about 7pm Sunday and got under control by Monday morning. The building was built more than two decades ago and was used as a warehouse later as the constructor didn't finish it. (Photo by Feature China/Barcroft Media)

Miners carry a goats head for burial in the crater as part of an annual offering ceremony on the Ijen volcano on December 17, 2013 in Yogyakarta, Indonesia. The ritual is performed by the sulfur miners of Mount Ijen who slaughter a goat and then bury the head in the crater of mount Ijenn. The sacrifice is performed to ward off potential disasters for the next year. The Ijen crater rises to 2,386m, with a depth of over 175m, making it one of the world's largest craters. Sulphur mining is a major industry in the region, made possible by an active vent at the edge of a lake, but the work is not without risks as the acidity of the water in the crater is high enough to dissolve clothing and cause breathing problems. (Photo by Ulet Ifansasti/Getty Images)

Cyclists hold a “Die-In” protest at Vauxhall on December 19, 2013 in London, England. Campaigning groups are calling for greater awareness of cyclists at busy road junctions after a number of deaths in the capital this year. (Photo by Peter Macdiarmid/Getty Images)

Shaun White competes during qualifying for the mens FIS Snowboard Slopestyle World Cup at U.S. Snowboarding and Freeskiing Grand Prix on December 19, 2013 in Copper Mountain, Colorado. (Photo by Mike Ehrmann/Getty Images)

Kashmiri Muslim artisans finishes a handmade Christmas gifts at their workshop before sending them to markets, on December 19, 2013 in Srinagar, the summer capital of Indian administered Kashmir, India. Paper machie gifts and decorative items for the Christmas tree are made by the Kashmiri artisans and are exported to countries including the United States, United Kingdom, France, Germany, and locally to regions in Indian mainland with Christian population. The artisans say the products are in demand owing to them being handmade and colourful. (Photo by Yawar Nazir/Getty Images)

An ancient standing stone is silhouetted as the morning sun rises over the hills and valleys of the North Yorkshire moors on December 20, 2013 near Castleton, United Kingdom. (Photo by Ian Forsyth/Getty Images)

London number 59 Bus which crashed on the Kennington Road on December 20, 2013 in London, England. The incident occurred around 10.50am on the Kennington Road while the bus was enroute route to King's Cross. Early reports suggest 19 people have been injured with two in critical condition. (Photo by Danny E. Martindale/Getty Images)

French highliner Julien Millot performs on the Paradiski cable way, 380m high, designed by French creator Jean-Charles de Castelbajac, on December 16, 2013 in front of the Mont Blanc mountain in La Plagne. (Photo by Jean-Pierre Clatot/AFP Photo)

The body of a man suspected to be an ex-Seleka militiaman lies by a charred car in Bangui, Central African Republic, on December 20, 2013. After a period of relative calm, violence has flared anew in the Central African Republic with angry demonstrations against Chadian peace keepers, shoo touts at checkpoints and the destruction of a mosque. (Photo by Jerome Delay/Associated Press)

Tom Tapp dressed as Santa Claus walks along the beach passing out candy canes and posing for pictures with beach goers on December 20, 2013 in Fort Lauderdale, Florida. Tapp has been visiting the beach as Santa Claus just before Christmas for over 25 years. (Photo by Joe Raedle/Getty Images)

Women arrive for treatment at a mobile clinic, provided by the Afghan Family Guidance Association (AFGA), in Kabul, on December 17, 2013. (Photo by Mohammad Ismail/Reuters)

An Afghan resident holds young children as she waits to receive winter blankets during a relief distribution programme in Herat on December 18, 2013. Decades of conflict have left Afghanistan with one of the highest internally displaced populations in the world. The UN refugee agency estimates it at 450,000 but Amnesty International has said the actual number is likely to be much higher. (Photo by Aref Karimi/AFP Photo)

Afghan girls carry sacks of thorn over heads to use for cooking and heating in the Bagram north of Kabul, Afghanistan, Tuesday, December 17, 2013. (Photo by Rahmat Gul/AP Photo)

An Indian laborer, wrapped in a blanket, smokes while sitting in his rickshaw on a foggy morning in New Delhi, India, Tuesday, December 17, 2013. Delhi and other parts of northwest India witnessed the first dense fog of the season that threw air and rail traffic out of gear, more than a week before it was expected, according to local news reports. (Photo by Altaf Qadri/AP Photo)

Christian youth march near the airport in Bangui, Central African Republic, calling for the resignation of the president and angry at the announced deployment of more Chadian troops within FOMAC, Friday, December 20, 2013. After a period of relative calm, violence has flared anew in the Central African Republic with angry demonstrations against Chadian peacekeepers, shootouts at checkpoints and the destruction of a mosque. (Photo by Jerome Delay/AP Photo)

Wisconsin's Lauren Carlini, center, celebrates with teammates after they beat Texas in an NCAA women's volleyball tournament semifinal Thursday, December 19, 2013, in Seattle. (Photo by Elaine Thompson/AP Photo)

A couple poses under an illuminated tunnel to celebrate the upcoming Christmas and New Year at Garden of Morning Calm in Gapyeong, South Korea, Friday, December 20, 2013. Christmas is one of the biggest holidays in South Korea. (Photo by Ahn Young-joon/AP Photo)

As North Koreans arrive to pay their respects, women sweep the base of statues of the late leaders Kim Il Sung and Kim Jong Il, right, in Pyongyang, North Korea, Monday, December 16, 2013, the eve of the second anniversary of the death of Kim Jong Il. (Photo by David Guttenfelder/AP Photo)

Displaced children from a Pakistani tribal area of Bajur due to fighting between militants and security forces cross a stream in Islamabad's slum, Pakistan, Wednesday, December 18, 2013. Thousands of locally displaced people and refugees from neighboring Afghanistan live in Islamabad's suburbs without basic amenities. (Photo by B. K. Bangash/AP Photo)

A Lebanese army soldier stands guard at the scene where a car bomb went off near a Hezbollah base near the village of Sbouba in the Baalbek region eastern Lebanon, early Tuesday, December 17, 2013. The Lebanese army and officials said, the latest in a wave of deadly attacks that have targeted the Shiite militant group's interests in Lebanon. (Photo by Bilal Hussein/AP Photo)

With the use of a zoom lens and a slow shutter speed, the holiday lights are blurred to create motion as they illuminate the Denver City/County Building in the annual display in downtown Denver late on Sunday, December 15, 2013. The lights will remain on through the holidays and then be turned back on in January to mark the run of the National Western Stock Show and Rodeo, which is one of the largest livestock exhibitions staged in North America. (Photo by David Zalubowski/AP Photo)

Authorities investigate the scene of a Delta Air Lines Boeing 737-800 jet that slid off a runway in the snow after arriving at Dane County Regional Airport in Madison, Wis., Monday, December 16, 2013. No one was hurt. (Photo by M. P. King/AP Photo/Wisconsin State Journal)

Pro-European Union activists pass through a police line as they march against the government in Kiev, Ukraine, Tuesday, December 17, 2013. Weeks of angry pro-European Union protests as well as Western pressure have forced Yanukoyvch to make some concessions to the opposition. Last week Yanukovych called for an amnesty for some of the activists detained. (Photo by Dmitry Lovetsky/AP Photo)

Australian Chinese Howard, 34, a North Korean leader Kim Jong Un lookalike who does not disclose his last name, is paid to participate in a protest urging North Korean Government to improve human rights and abolish political prisoners camp immediately, in Hong Kong December 15, 2013. (Photo by Tyrone Siu/Reuters)

Children play table football in Old Aleppo, December 15, 2013. (Photo by Molhem Barakat/Reuters)

The remains of a crashed U.S. military helicopter is seen in Miura, south of Tokyo, in this photo taken by Kyodo December 16, 2013. A U.S. military helicopter crash-landed in a coastal city south of Tokyo on Monday, injuring two of its four-man crew, Kyodo news reported. Mandatory credit. (Photo by Reuters/Kyodo)

A Pakistani balloon vendor walks through a cold and foggy morning in Lahore on December 17, 2013. Ongoing foggy weather in Punjab and other parts of the country has badly affected flight and rail schedules. (Photo by Arif Ali/AFP Photo)

A packed taxi drives past a French checkpoint in Bangui, Central African Republic, Monday December 16, 2013. Over 1600 French troops have been deployed to the country in an effort to put an end to sectarian violence. More than 600 people have been killed since Anti-Balaka launched a strike over Bangui last week before being pushed back. (Photo by Jerome Delay/AP Photo)

A polar bear replica, which is displayed by Greenpeace activists, is seen inside a block of ice in reference to the melting ice in the Arctic region, at Paulista avenue in Sao Paulo December 18, 2013. The sign reads “Do not let your future melt. Save the Arctic”. (Photo by Rodrigo Paiva/Reuters)

This image taken by the on-board camera of the “Yutu” or “Jade Rabbit” rover, and made off the screen of the Beijing Aerospace Control Center in Beijing on Sunday, December 15, 2013, shows a photo of the Chang'e-3 lander during the mutual-photograph process. The rover and the lander took photos of each other Sunday night, marking the success of the Chang'e-3 lunar probe mission. (Photo by Ding Lin/AP Photo/Xinhua)

In this image taken by the on-board camera of the lunar probe Chang'e-3 and made off the screen of the Beijing Aerospace Control Center in Beijing, China's first moon rover “Yutu” – or Jade Rabbit – is on the lunar surface in the area known as Sinus Iridum (Bay of Rainbows). Yutu touched down on the moon and left deep traces on its loose soil, state media reported Sunday, several hours after the country successfully carried out the world's first soft landing of a space probe on the moon in nearly four decades. (Photo by Xinhua)

A man dressed as a bear, walks near a barricade during a gathering of pro-European integration protesters, while waiting for paid photographs with tourists, in central Kiev December 16, 2013. The opposition went ahead with preparations for another big rally for Tuesday against what they see as moves by President Viktor Yanukovich to sell out national interests to Russia after backing away from a landmark deal with the European Union that would have shifted their country westwards. (Photo by Gleb Garanich/Reuters)

Aisha 11, carries coal to be used for cooking and heating from a brick-making factory in Jalalabad December 17, 2013. (Photo by Reuters/Parwiz)

BAE Systems handout photo of The forward end of the fifth Astute class submarine, Anson, in the Devonshire Dock Hall to begin construction on December 19, 2013. The 250-tonne section, standing at 38 feet tall and 34 feet wide, travelled through Barrow-in-Furness yesterday and now sits between her state-of-the-art sister submarines Audacious and Artful, ready for the next steps of the building process. (Photo by BAE Systems/PA Wire)

One of the Crossrail tunnels under construction 35 metres below the streets of Whitechapel, east London, which has proved to be one of the most challenging and impressive sites in the whole Crossrail project, and will be part of the 38 station route from Maidenhead Royal Berkshire in the west to Shenfield in Essex in the east. (Photo by John Stillwell/PA Wire)

Police officers clash with supporters of the native Indian community during a protest outside the Indian museum, next to the Maracana stadium, in Rio de Janeiro, on December 16, 2013. Police arrested more than 20 indigenous people who occupied the abandoned museum as a protest against its demolition as part of renovations ahead of the 2014 World Cup, to be played in Brazil. (Photo by Pilar Olivares/Reuters)

Lava flows from the Mount Etna volcano on the southern Italian island of Sicily near Catania early on December 16, 2013. The eruption of the Mount Etna volcano in Sicily yesterday forced the closure of nearby Catania airport because of the plumes of ash billowing into the sky, airport officials said. Twenty-one scheduled departures from Catania had to be scrapped and 26 arrivals re-routed to alternative destinations. The smaller airport of Comiso in the area was also closed down. (Photo by Giovanni Isolino/AFP Photo)

As the sun sets, Christmas lights outline towers at the Country Club Plaza shopping center in Kansas City, Missouri, on December 15, 2013. About 80 miles of lights with 280,000 multi-colored bulbs outline the buildings and towers in the shopping district. (Photo by Charlie Riedel/Associated Press)

Police raise their batons to stop an activist him from marching towards the Pakistani Embassy in Dhaka, Bangladesh, on December 19, 2013. Activists were protesting against the Pakistan parliament's resolution expressing concern over last week's execution of Jamaat-e-Islami leader Abdul Quader Mollah for war crimes committed during Bangladesh's 1971 independence war against Pakistan. According to local news reports several activists were injured by police. (Photo by A. M. Ahad/Associated Press)

Xiao Wei's severed right hand is seen attached to his ankle before the reattachment surgery at Xiangya Hospital in Changsha, Hunan province, in this December 4, 2013 handout photo provided by Xiangya Hospital, Central South University. According to local media, Xiao Wei's right hand was cut off in an accident during his work at a factory and was grafted to his leg for a month in order to perform the surgery to reattach his hand. Xiao Wei said he would be receiving another surgery in six months but might not be able to regain full use of his hand. (Photo by Xiangya Hospital, Central South University)

Bather leverages the hot sun on Ipanema Beach in Rio de Janeiro, on December 18, 2013. (Photo by Alessandro Buzas/Futura Press/Estadão Conteúdo)

Sakina waits for a teacher to recite verses from the Quran during religion class at a local mosque in Islamabad, Pakistan, Thursday, December 19, 2013. Religious schools in Pakistan mostly set up in mosques are potential source of education for thousands of children. (Photo by B. K. Bangash/AP Photo)

A passenger plane flies past the moon on its final descent to Heathrow Airport in London December 19, 2013. Britain should consider building new runways at London's Heathrow and Gatwick airports, a government commission said on Tuesday. (Photo by Toby Melville/Reuters)

A Pro-European Union activist plays with the ball in front of barricades at the Independence Square in Kiev, Ukraine, Thursday, December 19, 2013. President Vladimir Putin says Russia's $15-billion bailout for Ukraine is driven by a desire to help a partner in a desperate situation and isn't linked to its talks with the European Union.The Kremlin's move comes as Ukrainian President Viktor Yanukovych faces massive street protests over his decision to spike a pact with the EU in favor of closer ties with Russia. (Photo by Dmitry Lovetsky/AP Photo)

Portraits of Ukrainian President Viktor Yanukovich and Prime Minister Mykola Azarov are seen at a barricade during a rally in central Kiev December 20, 2013. Ukrainian President Viktor Yanukovich on Thursday criticised opposition leaders, who have brought tens of thousands of protesters onto the streets, for harbouring their own political ambitions and conducting “revolutionary” actions. (Photo by Gleb Garanich/Reuters)

A man holds a miniature replica of the country's first telecommunications satellite during the live broadcast from China of the launch, in La Paz, Bolivia, Friday, December 20, 2013. Hundreds of people gathered in the Bolivian capital to watch the launch of the satellite named after Tupac Katari, an indigenous Aymara hero who led 18th century resistance to Spanish colonizers, on large television screens erected by the government. It was financed with a credit from the China Development Bank for $302 million. (Photo by Juan Karita/AP Photo)

A woman stands bandaged and wearing a blanket given by emergency services following an incident at the Apollo Theatre, in London's Shaftesbury Avenue, Thursday evening, December 19, 2013, during a performance at the height of the Christmas season, with police saying there were “a number” of casualties. It wasn't immediately clear if the roof, ceiling or balcony had collapsed during a performance. Police said they “are aware of a number of casualties”, but had no further details. (Photo by Joel Ryan/AP Photo/Invision)

A medic connects electrodes to the head of Bertrand Piccard, pilot and co-founder of Solar Impulse, before the start of a 72-hour transatlantic flight simulation at the airport in Duebendorf, on December 17, 2013. Swiss long-range solar-powered aircraft project Solar Impulse HB-SIB airplane is expected to be completed by the end of 2013. Flight testing is planned for spring 2014, and the first solar-powered round-the-world flight for sometime between April and July 2015. (Photo by Arnd Wiegmann/Reuters)

Hot air balloons with tourists fly over ancient pagodas and temples in Bagan, Myanmar, Saturday, December 21, 2013. Bagan, one of the richest archaeological sites and tourist attractions in Myanmar has over 2,000 preserved temples and pagodas built between 11th-13th century. (Photo by Gemunu Amarasinghe/AP Photo)

A man gestures as he calls for help at a site hit by what activists said was an air strike from forces loyal to Syria's President Bashar al-Assad in Tareek Al-Bab area of Aleppo, December 18, 2013. (Photo by Saad Abobrahim/Reuters)

An Indonesian woman poses with a 3D illusionary art during a Trick Art exhibition in Jakarta, Indonesia, Tuesday, December 17, 2013. (Photo by Tatan Syuflana/AP Photo)

Indonesian police officers in riot gears take a break during a show of force ahead of Christmas celebrations in Jakarta, Indonesia, Friday, December 20, 2013. Since the Bali bombings in 2002, the world's largest Muslim country has been battling terrorists who recently operate in small groups and have targeted security forces and local “infidels” instead of Westerners. (Photo by Tatan Syuflana/AP Photo)

Newly-crowned Miss International Bea Rose Santiago of Philippines, left, is congratulated by former Miss International 2008 Alejandra Andreu of Spain during the final of the Miss International 2013 Beauty Pageant in Tokyo Tuesday, December 17, 2013. (Photo by Shizuo Kambayashi/AP Photo)

A child looks at a luxury brand store window with a Santa Claus display as people walk past at Ginza shopping district in Tokyo, on December 20, 2013. (Photo by Yuya Shino/Reuters)

A woman, with her lips and face painted to depict a deity, sits inside a house before she takes part in a parade to celebrate the Yamari Puni festival in Kathmandu, on December 17, 2013. “Yamari Puni” originates from Newari words, “ya” meaning like, “mari” meaning delicacy and “puni” meaning full moon. People from the Newar community celebrate the festival once a year, in the day and at night during a full moon, by performing traditional songs and dance. (Photo by Navesh Chitrakar/Reuters)

An Pro-European Union supporter dressed as Cossack has a rest at a tent camp in the city main street of Khreschatyk in Kiev Ukraine, Monday, December 16, 2013. Ukraine's opposition appears confident and shows no sign of relenting in its standoff with the government. The government has made some gestures toward the opposition, rejected some of its main demands and is opaque on another. (Photo by Efrem Lukatsky/AP Photo)

Firefighters battle a fire in the warehouse district near the St. Louis riverfront, on December 16, 2013. After breaking down the doors of the warehouse, firefighters had to retreat because of the intense heat and flame coming from the building. Over 80 firefighters were called to the scene. No one was injured. (Photo by J. B. Forbes/The St. Louis Post-Dispatch)

Miley Cyrus performs in concert during the Hot 99.5 Jingle Ball at the Verizon Center in Washington, on December 16, 2013. (Photo by Owen Sweeney/Invision)

A Palestinian walks on snow to reach to his home in the West Bank city of Nablus, Sunday, December 15, 2013. The Gaza Strip received its first shipment of industrial fuel in 45 days Sunday. A lack of fuel has hampered rescue efforts in Gaza, where thousands of residents fled flooded homes. The storm let up Saturday, but authorities in the region still struggled to clear roads and repair downed power lines. (Photo by Nasser Ishtayeh/AP Photo)

A Palestinian shop owner carries a Santa Claus figure on the street preparing for the Christian holiday of Christmas near Jaffa Gate in the Old City of Jerusalem, Israel, 19 December 2013. (Photo by Abir Sultan/EPA)

Palestinian rescue volunteers ride a boat through flooded homes in Gaza City, Monday, December 16, 2013. Rescue workers evacuated thousands of Gaza Strip residents from homes flooded by heavy rain, using fishing boats and heavy construction equipment to pluck some of those trapped from upper floors. (Photo by Adel Hana/AP Photo)

Miss France 2014 Flora Coquerel shoots a picture with a fan during a welcoming ceremony held at her home place on December 18, 2013, in Morancez, center France. (Photo by Jean-Francois Monier/AFP Photo)

Netherlands' Prime Minister Mark Rutte (R) gives a kiss on the hand of chamber chairman Anouchka van Miltenburg before the start of the debate about the calendar for the European Summit on December 18, 2013. (Photo by Martijn Beekman/AFP Photo/ANP)

North Korean girls carry firewood on their backs as they walk on the banks of Yalu River, some 100 kilometers (62 miles) from the North Korean town of Sinuiju, opposite the Chinese border city of Dandong, December 16, 2013. U.S. Secretary of State John Kerry described North Korea's Kim Jong Un as reckless and insecure after the execution of the leader's powerful uncle, and said Kim's actions underscored a need for a unified stand against Pyongyang's nuclear program. (Photo by Jacky Chen/Reuters)

A Pakistani man drives an auto rickshaw carrying flowers, in Peshawar, Pakistan, Thursday, December 19, 2013. The dense fog disrupted flights, train schedules, and forced authorities to close several highway sections in Pakistan. (Photo by Mohammad Sajjad/AP Photo)

An undated handout picture released by NASA on 19 December 2013 shows a still image taken from a NASA movie of the sun based on data from NASA's Solar Dynamics Observatory (SDO), showing the wide range of wavelengths, invisible to the naked eye, that the telescope can view. SDO converts the wavelengths into an image humans can see, and the light is colorized into a rainbow of colors. Yellow light of 5,800 Angstroms, for example, generally emanates from material of about 5,700 degree Celsius, which represents the surface of the sun. Extreme ultraviolet light of 94 Angstroms, which is typically colorized in green in SDO images, comes from atoms that are about 6,300,000 degree Celsius and is a good wavelength for looking at solar flares, which can reach such high temperatures. By examining pictures of the sun in a variety of wavelengths, as it is done not only by SDO, but also by NASA's Interface Region Imaging Spectrograph, NASA's Solar Terrestrial Relations Observatory and the European Space Agency/NASA Solar and Heliospheric Observatory; scientists can track how particles and heat move through the sun's atmosphere. (Photo by EPA/NASA Goddard Space Flight Center)

A wounded Syrian woman walks with her children following airstrikes on a rebel area of the war-torn northern city of Aleppo on December 15, 2013. The Aleppo Media Centre, an activist network on the ground, reported several helicopter attacks on rebel areas of the city, once Syria's economic hub. (Photo by Mohammed Al-Khatieb/AFP Photo)

A long skater speeds away on the rain-wet ice on lake Orlangen, South of Stockholm on December 15, 2013. Meteorologists forecast temperatures around 5 degrees for southern Sweden. (Photo by Tobias Rostlund/AFP Photo)

An ultra-orthodox Jewish man builds a snowman in a street of Jerusalem on December 13, 2013 following a snowstorm. (Photo by Menahem Kahana/AFP Photo)

A daring photographer ventured into these stunning ice caves despite standing below a roof of blue-coloured ice more than 20 metres thick in Iceland. (Photo by Javier de la Torre/Solent News & Photo Agency)

A stunning red December sunset hovers over Scotland in a scene which wouldn't look out of place in Africa. (Photo by Russell Bain/Solent News & Photo Agency)

Team Myanmar competes in the Vovinam, Don Chan Tan Cong category during the 2013 Southeast Asian Games at Zayar Thiri Indoor Stadium A on December 19, 2013 in Nay Pyi Taw, Myanmar. (Photo by Suhaimi Abdullah/Getty Images)

An airplane takes off at Heathrow Airport in London, on December 17, 2013. (Photo by Toby Melville/Reuters)

Police officers arrest protestors wearing traditional headdresses outside the Indian Museum, during a protest in Rio de Janeiro, on December 16, 2013. Police arrested more than 20 indigenous people whose Sunday occupation at the abandoned museum, near the Maracana stadium, was a protest against its demolition, which occurred as part of renovations ahead of Brazil’s 2014 World Cup. (Photo by Fabio Motta/Estadão Conteúdo)

Mississippi State Bulldogs mascot Bully and Santa Claus share a laugh during the game between the Mississippi State Bulldogs and the Florida Gulf Coast Eagles at Humphrey Coliseum, on December 19, 2013. Mississippi State Bulldogs defeat Florida Gulf Coast Eagles 66-53. (Photo by Spruce Derden/USA TODAY Sports)

A general view of Christmas decorations and lights at the home of the Duszenko family in Polkowice, southwestern Poland December 18, 2013. Since 1999, the Duszenko family from Lower Silesia has always decorated their house and garden before Christmas. This year, they used around 52,000 lights for the decorations. (Photo by Kacper Pempel/Reuters)

A man wearing a Santa Claus outfit receives help to exit a helicopter at the Romanian Airforce Base 90 in Otopeni, outside Bucharest, Romania, Tuesday, December 17, 2013. Santa arrived on a Puma helicopter and distributed gifts to the children of the Romanian air force personnel. (Photo by Vadim Ghirda/AP Photo)

A couple skates on the frozen waters of Lake St. Moritz during a sunny winter day in the Swiss mountain resort of St. Moritz, on December 14, 2013. (Photo by Arnd Wiegmann/Reuters)

A man helps a boy out of a flooded street following heavy rains in Gaza City, on December 14, 2013. Hundreds of houses were flooded following a rain storm in Gaza. (Photo by Adel Hana/Associated Press)

An artist's impression shows Gaia mapping the stars of the Milky Way in this handout image. The European Space Agency's Gaia mission will map the position and motion of a billion stars to produce an unprecedented 3D map of our galaxy. (Photo by ESA/ATG Media lab)

Residents look for survivors after what activists said was an air strike from forces loyal to Syria's President Bashar al-Assad in the Takeek Al-Bab area of Aleppo, on December 15, 2013. (Photo by Molhem Barakat/Reuters)

A young Pro-European integration protester stands in front of police during a mass rally at Independence Square in Kiev, on December 15, 2013. Thousands of Ukrainian massed on Sunday for a rally against President Viktor Yanukovich just days before he heads for a meeting in the Kremlin which the opposition fears will slam the door on integration with the European mainstream. The street protests erupted after the November 21 decision by Yanukovich to walk away from a trade-and-political agreement with the EU after years of careful preparation and turn to Moscow, Kiev's old Soviet master, for aid to save Ukraine's distressed economy. (Photo by Marko Djurica/Reuters)

A boy looks out from his hut's window at the burial ground of late former South African President Nelson Mandela ahead of his funeral in Qunu, on December 15, 2013. (Photo by Yannis Behrakis/Reuters)

Residents carry an injured man that survived shelling after what activists said was an air strike from forces loyal to Syria's President Bashar al-Assad in Takeek Al-Bab area of Aleppo, on December 17, 2013. (Photo by Saad AboBrahim/Reuters)

A journalist, wearing slippers to protect the glass floor, stands in the “Step into the Void” installation during a press visit at the Aiguille du Midi mountain peak above Chamonix, in the French Alps, on December 17, 2013. The Chamonix Skywalk is a five-sided glass structure installed on the top terrace of the Aiguille du Midi, with a 3,300 ft. drop below, where visitors can step out from the terrace, giving them the impression of standing in the void. The glass room will open to the public on December 21. (Photo by Robert Pratta/Reuters)

A typhoon survivor decorates a Christmas tree amidst the rubble of destroyed houses in Tacloban, Philippines, on December 17, 2013. Super typhoon Haiyan reduced almost everything in its path to rubble when it swept ashore in the central Philippines on November 8, killing at least 6,069 people, leaving 1,779 missing and 4 million either homeless or with damaged homes. (Photo by Erik De Castro/Reuters)

Activists of Akhil Bharatiya Vidyarthi Parishad (ABVP), linked to India's main opposition Bharatiya Janata Party (BJP), burn an effigy depicting U.S. President Barack Obama during a protest in the eastern Indian city of Bhubaneswar December 19, 2013. India urged the United States to withdraw a visa fraud case against one of its diplomats in New York on Thursday, suggesting U.S. Secretary of State John Kerry's expression of regret over her treatment while in custody was not enough. The arrest of Devyani Khobragade on charges of underpaying her nanny and her subsequent strip-search has touched off a furore within the Indian foreign service and put an unexpected strain on ties between the two countries. (Photo by Reuters/Stringer)

Pro-European Union activists launch flying lanterns during a rally in Independence Square in Kiev, Ukraine, Monday, Dec. 16, 2013. Weeks of angry pro-European Union protests as well as Western pressure have forced Yanukoyvch to make some concessions to the opposition. Last week Yanukovych called for an amnesty for some of the activists detained. (Photo by Sergei Grits/AP Photo)

Firefighter Brian Hughes fires a flare during a burn out operation in Big Sur, California, on December 18, 2013. Firefighters battling a blaze that has destroyed 22 homes along California's scenic Big Sur coastline were counting on lower temperatures and more favorable wind conditions to help them suppress the flames, officials said on Wednesday. (Photo by Michael Fiala/Reuters)

A child takes off Pope Francis' white zucchetto, or skullcap, during a meeting with children and volunteers of the Santa Marta Vatican Institute, at the Vatican, on December 14, 2013. (Photo by Gregorio Borgia/Associated Press)

BBC handout photo of Cast member Kathy Longbottom as the Angel Gabriel from the Wintershall Nativity play appears on the roof of the All Souls Church during their performance outside the BBC Broadcasting House, London, on December 19, 2013. (Photo by Jeff Overs/BBC/PA Wire)

Members of the Coney Island Polar Bear Club warm up before swimming at the beach at Coney Island in New York, on December 15, 2013. (Photo by Eric Thayer/Reuters)

Actors take part in street theater organized by the Coordinator of NGO's of the Basque Country in Bilbao, Spain, on December 19, 2013. The organization, an umbrella group for 84 Basque NGO's, performed Quien es Quien (Who's Who), an improvised theatrical piece, dressed as bankers, the wealthy and military personnel, handing out fake money to motorists and passers-by. The action was designed to draw attention to what the coordinator claims are the causes of poverty and inequality in the world. (Photo by Vincent West/Reuters)

People gather at the scene where a passenger bus plunged from an elevated highway known as the Skyway, in suburban Paranaque, southeast of Manila, Philippines, on December 16, 2013. Officials said at least 21 people died, mostly passengers, and more than 20 others were injured in the accident. (Photo by Bullit Marquez/Associated Press)

Bodies of passengers are covered with newspapers as they are laid down on the road after the passenger bus they were in plunged from an elevated highway in suburban Paranaque, Philippines, on December 16, 2013. (Photo by Bullit Marquez/Associated Press)

Visitors walk through the holiday lights display “ZooLights” at the Lincoln Park Zoo in Chicago, Illinois, December 17, 2013. (Photo by Jim Young/Reuters)

Farmers argue with policemen during a rally against the government's new property tax outside the parliament in Athens, on December 20, 2013. (Photo by John Kolesidis/Reuters)

Sierra Deaton (center) photobombs judge Demi Lovato's interview as Alex Kinsey speaks to a television reporter backstage after the folk duo won “The X Factor” in Los Angeles, on December 19, 2013. Winners Kinsey and Deaton won a $1 million recording contract with Sony Music Entertainment. (Photo by Kevork Djansezian/Reuters)