Members of the honour guard stand at attention, prior to a meeting between Chile's President Michelle Bachelet and Chinese President Xi Jinping at the Great Hall of the People in Beijing, November 12, 2014. (Photo by Fred Dufour/Reuters)

Members of the honour guard stand at attention, prior to a meeting between Chile's President Michelle Bachelet and Chinese President Xi Jinping at the Great Hall of the People in Beijing, November 12, 2014. (Photo by Fred Dufour/Reuters)

Members of the honour guard stand at attention, prior to a meeting between Chile's President Michelle Bachelet and Chinese President Xi Jinping at the Great Hall of the People in Beijing, November 12, 2014. (Photo by Fred Dufour/Reuters)

Mannequins of pregnant schoolgirls are seen in a shop window at a shopping mall in Caracas November 12, 2014. A display showing mannequins of pregnant schoolgirls at a Caracas mall is shocking shoppers and stirring debate over s*x education in Venezuela. Two local charities have dressed up three mannequins behind a shop window as girls with bulging stomachs under the blue uniforms used by schoolchildren here until age 15. (Photo by Carlos Garcia Rawlins/Reuters)

A model presents a creation for the Spring-Summer 2015 collection by Belarussian designer Apti Eziev during Belarus Fashion Week in Minsk, November 12, 2014. (Photo by Vasily Fedosenko/Reuters)

A model presents a creation for the Spring-Summer 2015 collection by Belarussian designer Anastasia Miranovich during Belarus Fashion Week in Minsk, November 12, 2014. (Photo by Vasily Fedosenko/Reuters)

Workers look out at a broken scaffolding that had stranded window washers earlier on the side of 1 World Trade Center in New York November 12, 2014. Two window washers caught on dangling scaffolding on the 69th floor of New York City's 1 World Trade Center were pulled to safety on Wednesday through a window cut in the tallest U.S. skyscraper, a building official said. (Photo by Mike Segar/Reuters)

A participant wearing stilettos runs as he competes in the annual Tour De Takong, or the Stiletto race, along an avenue well-known for shoe shops, in Marikina, east of Manila November 13, 2014. The Stiletto race is part of the yearly sapatos (shoes) festival in Marikina, which locals say is the shoe capital of the Philippines. (Photo by Romeo Ranoco/Reuters)

Russian artist Vasily Slonov cuts a U.S. one dollar banknote as he creates an artwork depicting a portrait of Russian President Vladimir Putin based on a layer of U.S. dollars, Russian and Soviet roubles at his workshop in Krasnoyarsk, Siberia, November 13, 2014. (Photo by Ilya Naymushin/Reuters)

Russian artist Vasily Slonov works with a banknote as he creates an artwork depicting a portrait of Russian President Vladimir Putin based on a layer of U.S. dollars, Russian and Soviet roubles at his workshop in Krasnoyarsk, Siberia, November 13, 2014. (Photo by Ilya Naymushin/Reuters)

Russian artist Vasily Slonov attaches a banknote as he creates an artwork depicting a portrait of Russian President Vladimir Putin based on a layer of U.S. dollars, Russian and Soviet roubles at his workshop in Krasnoyarsk, Siberia, November 13, 2014. (Photo by Ilya Naymushin/Reuters)

A labourer smokes bidi, a local cigarette hand-rolled with tobacco leaf, as he collects water chestnuts from a pond in the northern Indian city of Allahabad November 13, 2014. Water chestnuts are locally known as Singada and are eaten raw, boiled or are grounded into flour after they are dried. (Photo by Jitendra Prakash/Reuters)

The world's shortest man Chandra Bahadur Dangi greets the tallest living man Sultan Kosen to mark the Guinness World Records Day in London November 13, 2014. Kosen measuring 251cm, towers over Dangi who is only 54.6cm tall. The Guinness World Records celebrates its 60th edition of the annual records book. (Photo by Luke MacGregor/Reuters)

The mother of 30-year-old Phoolbai, who died after she underwent a sterilization surgery at a government mass sterilisation “camp”, reacts at her home in Aamsena village in Bilaspur district, in the eastern Indian state of Chhattisgarh, November 13, 2014. The doctor whose sterilisation of 83 women in less than three hours ended in at least a dozen deaths said on Thursday the express operations were his moral responsibility and blamed adulterated medicines for the tragedy. (Photo by Anindito Mukherjee/Reuters)

Jean de Loisy, Palais de Tokyo director, hides a needle in a haystack before an art performance based on the expression “looking for a needle in a haystack” at the Palais de Tokyo modern and contemporary art museum in Paris November 13, 2014. Italian artist Sven Sachsalber will spend two days trying to find the needle in a large pile of hay. The search started today at midday and will continue until midnight, with a 12-hour break before it resumes. (Photo by Charles Platiau/Reuters)

A panoramic image of the surface of Comet 67P/Churyumov-Gerasimenko captured by Rosetta's lander Philae's CIVA-P imaging system, with a sketch of the lander in the configuration the lander team currently believe it is in superimposed on top, is seen in this European Space Agency (ESA) handout image released November 13, 2014. The European probe that landed on the comet in a first for space exploration is resting on the surface despite technical problems, pictures beamed half a billion kilometres (300 million miles) back to Earth showed on Thursday. (Photo by Reuters/ESA/Rosetta/Philae/CIVA)

German model Toni Garrn arrives on the red carpet for the Bambi 2014 media awards ceremony in Berlin November 13, 2014. The annual Bambi awards honours celebrities from the world of entertainment, literature, sports and politics. (Photo by Hannibal Hanschke/Reuters)

Ariana Grande performs during the Bambi 2014 media awards ceremony in Berlin November 13, 2014. The annual Bambi awards honours celebrities from the world of entertainment, literature, sports and politics. (Photo by Fabrizio Bensch/Reuters)

A protester, is seen wearing a mask depicting U.S. President Barack Obama, and an Australian life guard outfit during a demonstration calling for global equality among nations outside the site of the venue of the annual G20 leaders summit in Brisbane, November 14, 2014. Leaders of the top 20 industrialized nations will gather in Brisbane November 15-16 for their annual G20 summit. (Photo by Jason Reed/Reuters)

Laureen Harper (L), the wife of Canadian Prime Minister Stephen Harper, performs a “Hongi” with a traditionally dressed Maori warrior during a welcoming ceremony at Government House in Auckland November 14, 2014. (Photo by Shane Wenzlick/Reuters)

A man looks at graffiti depicting U.S. President Barack Obama and Osama Bin Laden painted on the back of a bus in the outskirts of La Paz November 13, 2014. The word on the bus reads, “Rivals”. (Photo by David Mercado/Reuters)

People look at home-made armoured vehicle look-alikes on a street in Shenyang, Liaoning province, November 12, 2014. A man surnamed Zhang and his friends converted two cars into these two vehicles, for his son, and will be displaying them on show at a local park. The cannons on the vehicles can fire paintballs and smoke shells, local media cited Zhang as saying. (Photo by Reuters/Stringer)

A man surnamed Zhang sits in his home-made armoured vehicle look-alike on a street in Shenyang, Liaoning province, November 12, 2014. (Photo by Reuters/Stringer)

Passengers, one wearing a mask, ride a light rail tram in Jerusalem November 11, 2014. If there has been a constant target of Palestinian attacks during weeks of unrest in Jerusalem, it is the city's Light Rail, a sleek tram that snakes through downtown, past the ancient walls of the Old City, symbolically uniting the Jewish West and the Arab East, an area Israel captured in a 1967 war. Launched in 2011, the project was hailed as a piece of infrastructure that would transform the city, bringing Israelis and Palestinians closer through shared public rail transport. While in some ways that has happened, the past few months have torn that cosmopolitan picture apart. (Photo by Ronen Zvulun/Reuters)

Labourers carry grocery items at a wholesale market in Kolkata November 14, 2014. India's inflation dropped to a new multi-year low in October, helped by slower annual rises in food and fuel prices, intensifying pressure on the central bank to cut interest rates to encourage spending and investment needed to boost growth. (Photo by Rupak De Chowdhuri/Reuters)

Sonja Enz of the Stapferhaus, an event place for contemporary exhibitions, holds coins in her hands as she sits in a room filled with 4 million Swiss five cent coins during a media preview of the exhibition “Geld – Jenseits von Gut und Boese” (Money – beyond good and evil) in the town of Lenzburg west of Zurich November 14, 2014. The exhibition at the Stapferhaus is opened to the public from November 15 to November 29, 2015. (Photo by Arnd Wiegmann/Reuters)

A young military cadet releases a pigeon after an oath-taking ceremony at the Kiev Pechersk Lavra monastery in Kiev, November 14, 2014. About 100 new young military cadets took part in an oath-taking ceremony on Friday, according to officials. (Photo by Gleb Garanich/Reuters)

Young military cadets take part in an oath-taking ceremony at the Kiev Pechersk Lavra monastery in Kiev, November 14, 2014. (Photo by Gleb Garanich/Reuters)