Girls stand up against the bar during a ballet practice session at an government-sponsored music and ballet school in Baghdad January 11, 2015. (Photo by Thaier al-Sudani/Reuters)

Soldiers from Somalia's Puntland keep guard on high grounds at the Galgala hills, during preparations for an offense against al Shabaab militants, north of the capital Mogadishu, January 9, 2015. (Photo by Abdiqani Hassan/Reuters)

Marit Bjoergen of Norway reacts after winning the FIS Tour de ski after the women's FIS Tour de ski cross-country skiing 9km final climb free pursuit race on the Alpe Cermis in Val di Fiemme January 11, 2015. (Photo by Alessandro Garofalo/Reuters)

Models take selfies as they display neck beads, popularly used in social ceremonies, at a park in Ikeja duistrict in Lagos January 11, 2015. (Photo by Akintunde Akinleye/Reuters)

Residents play with snow inside a swimming pool in Jizeen, southern Lebanon January 11, 2015. (Photo by Ali Hashisho/Reuters)

(L-R) Barcelona's Luis Suarez, Neymar and Lionel Messi celebrate a goal against Atletico Madrid during their Spanish First Division soccer match at Camp Nou stadium in Barcelona January 11, 2015. (Photo by Albert Gea/Reuters)

The newly identified prehistoric marine reptile Dearcmhara shawcrossi, a member of a group called ichthyosaurs that swam the world's oceans at the same time that dinosaurs ruled the land, is depicted in this handout illustration provided by Todd Marshall. Scientists have announced the discovery of the fossil remains of the dolphin-like seagoing reptile on Scotland's Isle of Skye that lived about 170 million years ago and was about 14 feet (4.3 meters) long. Ichthyosaurs, some of which reached monstrous proportions rivaling all but the largest of today's whales, thrived for more than 150 million years until disappearing about 95 million years ago. Dearcmhara, a moderate-sized ichthyosaur, swam in warm, shallow seas during the Jurassic Period, eating fish and squid. Its remains are incomplete but the shape of a bone in its front flippers suggests it may have been an especially strong or fast swimmer, the researchers said. (Photo by Todd Marshall/Reuters)

A 14-storey building collapses as it is demolished to make way for a new business and residential complex, on a hazy day in Chengdu, Sichuan province January 11, 2015. China's annual economic growth likely slowed to 7.2 percent in the fourth quarter, the weakest since the depths of the global crisis, a Reuters poll showed. (Photo by Reuters/Stringer)

A man with a gun and a metal detector poses for photographers (unseen) while he stands outside a school after it reopened in Peshawar January 12, 2015. Children streamed back to school across Pakistan on Monday in an anxious start to a new term following last month's massacre of 134 students at an army-run school in the volatile northwestern city of Peshawar. Most schools across the country of 180 million had been shut until Monday for an extended winter break in the aftermath of the Dec. 16 attack when Taliban militants broke into Army Public School and methodically killed the children. (Photo by Khuram Parvez/Reuters)

Students walk past an entrance as a policeman (R) and a staff member stand guard outside a school after it reopened in Peshawar January 12, 2015. (Photo by Khuram Parvez/Reuters)

Devotees ride on the roof of a train as they return to the city after attending the final prayers on the first phase of Bishwa Ijtema in Dhaka January 11, 2015. Hundreds of thousands of pilgrims congregated in the Bangladeshi capital Dhaka as the first phase of this year's Bishwa Ijtema, one of the biggest Islamic gatherings in the world after the Haj in Saudi Arabia, came to an end. (Photo by Reuters/Stringer)

Muslim participants gesture from a departing train following the conclusion of the World Muslim Congregation, also known as Biswa Ijtema, at Tongi, on the outskirts of the Bangladesh capital Dhaka, on January 11, 2015. (Photo by AFP Photo)

Horse-riding cowboys lead 120 longhorn cattle up Washington Blvd. to introduce the 2009 Dodge Ram pickup truck during press days of the 2008 North American International Auto Show in Detroit, Michigan in this file image from January 13, 2008. The Detroit show is held in January to be first among each year's major car shows. (Photo by Rebecca Cook/Reuters)

A worker installs electricity transmission components on an electricity pylon in Chuzhou, Anhui province January 12, 2015. China's annual economic growth likely slowed to 7.2 percent in the fourth quarter, the weakest since the depths of the global crisis, a Reuters poll showed, which would keep pressure on policymakers to head off a sharper slowdown this year. (Photo by Reuters/Stringer)

Turkey's President Tayyip Erdogan (R) shakes hands with Palestinian President Mahmoud Abbas during a welcoming ceremony at the Presidential Palace in Ankara January 12, 2015. (Photo by Adem Altan/Reuters)

A Zimbabwean girl prepares food besides burnt and demolished makeshift shelters at Manzou Farm in Mazowe, January 8, 2015. About 200 families are facing eviction from a farm near Harare after the government stated that the land was earmarked for a game park and was declared a national heritage. But critics say the villagers – who have occupied the land since 2001 at the height of invasion of white-owned commercial farms by President Robert Mugabe's ZANU-PF supporters – are being forced out to make more space for the president's wife, Grace, who already owns the adjacent land. The villagers have been granted a court order stopping the evictions. (Photo by Philimon Bulawayo/Reuters)

The “Birch Cent”, a 1792 United States penny, is shown in this publicity photo released to Reuters January 12, 2015. A Beverly Hills rare coin dealer purchased a 1792 American penny for nearly $2.9 million, the most ever paid for a one-cent piece at auction. (Photo by Reuters/Heritage Auctions)

The reverse of the “Birch Cent”, a 1792 United States penny, is shown in this publicity photo released to Reuters January 12, 2015. (Photo by Reuters/Heritage Auctions)

Models pose with Ssangyong Motor Co's Tivoli during its launch ceremony in Seoul January 13, 2015. Ssangyong Motor unveiled the Tivoli in South Korea on Tuesday, its first new model launch in four years, hoping to accelerate its turnaround from the brink of bankruptcy in the wake of the global financial crisis. (Photo by Kim Hong-Ji/Reuters)

A boy carrying a bag of used plastic passes by a poster addressed to Pope Francis at a slum area in Quezon city, metro Manila January 13, 2015. Millions of Filipinos will gather at key points in Metro Manila and Leyte province, central Philippines for the Papal visit of Pope Francis from January 15 to January 19. (Photo by Romeo Ranoco/Reuters)

Children eat “pagpag”, re-cooked leftover food scavenged from trash, in front of a poster addressed to Pope Francis at a slum area in Quezon city, metro Manila January 13, 2015. (Photo by Romeo Ranoco/Reuters)

A man carrying bags of used plastic passes by a poster addressed to Pope Francis at a slum area in Quezon city, metro Manila January 13, 2015. (Photo by Romeo Ranoco/Reuters)

A woman views an exhibition called “Oh! Future Sensation” as part of Saint-Gobain's 350th anniversary celebrations in Shanghai January 13, 2015. (Photo by Aly Song/Reuters)

A security guard stands behind strings, a part of an artwork which is displayed at a shopping mall, in Beijing January 13, 2015. (Photo by Kim Kyung-Hoon/Reuters)

A woman takes pictures as she views an exhibition called “Oh! Future Sensation” as part of Saint-Gobain's 350th anniversary celebrations in Shanghai January 13, 2015. (Photo by Aly Song/Reuters)

A woman buys ornamental fish on the street in Hanoi January 13, 2015. (Photo by Reuters/Kham)

A mourner cries during the joint funeral in Jerusalem for the victims of Friday's attack on a Paris grocery, January 13, 2015. The bodies of four French Jews killed in an attack on a Paris kosher grocery have been flown to Israel for burial in Jerusalem on Tuesday. (Photo by Baz Ratner/Reuters)

Part of a memorial to the victims of forced labour of a National Rail (Reichsbahn) workshop is seen next to a former Nazi SS guards barracks of Buchenwald concentration camp in Schwerte, near the western German town of Dortmund January 13, 2015. The city of Schwerte plans to house 21 asylum seekers in the former Nazi SS guards barracks, German newspaper Westdeutsche Allgemeine Zeitung (WAZ) reported on Monday. (Photo by Ina Fassbender/Reuters)

Part of a memorial to the victims of forced labour of a National Rail (Reichsbahn) workshop is seen next to a former Nazi SS guards barracks of Buchenwald concentration camp in Schwerte, near the western German town of Dortmund January 13, 2015. (Photo by Ina Fassbender/Reuters)

A United Nations security officer attempts to eject Kenya-based foreign correspondents demonstrating against the imprisonment of three Al Jazeera journalists in Egypt, at the United Nations Environment programme (UNEP) headquarters in Nairobi January 13, 2015, as a reception by Egypt's Foreign Minister Sameh Shoukry took place nearby. Two of three Al Jazeera journalists jailed in Egypt have applied to be deported under a new law after the country's highest court ordered their retrial but did not free them as their families had hoped. Australian Peter Greste, Canadian-Egyptian Mohamed Fahmy and Egyptian Baher Mohamed were sentenced in June to seven to 10 years in jail for spreading lies to help a “terrorist organization” – a reference to Egypt's outlawed Muslim Brotherhood. (Photo by Thomas Mukoya/Reuters)

A United Nations security officer attempts to eject Kenya-based foreign correspondents demonstrating against the imprisonment of three Al Jazeera journalists in Egypt, at the United Nations Environment programme (UNEP) headquarters in Nairobi January 13, 2015, as a reception by Egypt's Foreign Minister Sameh Shoukry took place nearby. (Photo by Thomas Mukoya/Reuters)

An image of Swedish actress Anita Ekberg, protagonist of Federico Fellini's movie "La Dolce Vita", is projected onto the Trevi Fountain, where one of the film's most notorious scenes was shot, during the “White Night” festivities in Rome in this file photo taken September 27, 2003. The striking blonde Swedish actress whose sashay through Rome's Trevi fountain in “La Dolce Vita” made her an icon of cinema, died January 12, 2015 at a clinic near Rome. Ekberg was born in Sweden in 1931. Her career began after she was crowned Miss Sweden in the early 1950s and she shot to global fame after playing the actress Sylvia in Federico Fellini's “La Dolce Vita” (The Sweet Life). (Photo by Max Rossi/Reuters)