Permanent sunset by artist Alejandro Propato is seen at the 10th annual Sculpture by the Sea at Cottesloe Beach on March 7, 2014 in Perth, Australia. (Photo by Paul Kane/Getty Images)

A Tibetan Monk carries a portrait of spiritual leader the Dalai Lama during festivities marking the last day of the Tibetan New Year, or Losar, in Kathmandu, Nepal, Tuesday, March 4, 2014. Tibetans across the world marked the arrival of the Wood Horse year with prayers and festivities. (Photo by Niranjan Shrestha/AP Photo)

Ultra-Orthodox Jewish men dance before the start of a mass prayer in Jerusalem March 2, 2014. Hundreds of thousands of ultra-Orthodox Jews held a mass prayer in Jerusalem on Sunday in protest against a bill meant to slash military exemptions granted to seminary students, a tradition held since the founding of Israel. (Photo by Darren Whiteside/Reuters)

A fashion lover poses for photographers prior to Valentino's ready to wear fall/winter 2014-2015 fashion collection presented in Paris, Tuesday, March 4, 2014. (Photo by Thibault Camus/AP Photo)

Police fire tear gas at anti-government protesters at Altamira square in Caracas March 6, 2014. (Photo by Carlos Garcia Rawlins/Reuters)

A man poses for a photo next to sculptures made by Taiwanese sculptor Ju Ming in Hong Kong on March 6, 2014. The artwork is part of the “Ju Ming – Sculpting the Living World” which is the first large-scale solo exhibition of the artist in Hong Kong. (Photo by Philippe Lopez/AFP Photo)

Kevin and Merith Starren have their picture taken by Merith's brother Mark Ernst (R) and nephew Logan Ernst (L) in front of a 50-foot snowman named “Granddaddy” in Gilman, Minnesota, March 6, 2014. (Photo by Eric Miller/Reuters)

Float builder Jacques Tilly carries the head of a figure depicting Russian President Vladimir Putin in a shopping cart in Duesseldorf, Germany, 4 March 2014. The firgure was on display at the Rose Monday (Rosenmontag) Parade on 03 March with hundreds of thousands of visitors. (Photo by Jan-Philipp Strobel/EPA)

Director and producer Steve McQueen jumps after accepting the Oscar for best picture for his work in “12 Years a Slave” at the 86th Academy Awards in Hollywood, California March 2, 2014. (Photo by Lucy Nicholson/Reuters)

An internally displaced Afghan child performs during a graduation ceremony organized by the Taban team in Kabul, Afghanistan, March 5, 2014. Taban is a youth team training IDP children on their circus skills. The ceremony was organized for internally displaced Afghan children who have joined a three-month winter program to organize their skills. (Photo by Pervaiz Sabawoon/EPA)

A boy wearing a mask jumps over the fire during Bele Poklade carnival celebrations in the village of Lozovik, some 100 km (62 miles) from the capital Belgrade, March 2, 2014. Bele Poklade has its roots in old pagan customs and is marked annually seven weeks before Easter. Children walk through the village to collect eggs, and at the end they jump over a fire to banish evil demons. (Photo by Marko Djurica/Reuters)

Ethnic minority delegates wearing traditional costumes hold hands as they walk toward the Great Hall of the People to attend sessions of the National People's Congress and the Chinese People's Political Consultative Conference in Beijing, China Monday, March 4, 2013. (Photo by Andy Wong/AP Photo)

South African Paralympic athlete Oscar Pistorius (R) leaves the High Court in Pretoria during the lunch break on day 3 of his murder trial, in Pretoria, South Africa, March 5, 2014. Pistorius is standing trial for the premeditated murder of his model girlfriend Reeva Steenkamp in February 2013. (Photo by Kim Ludbrook/EPA)

Kai Otton of Australia was eliminated from the Quiksilver Pro Gold Coast after placing second in his Round 2 heat at Snapper Rocks on March 3, 2014 in Gold Coast, Australia. (Photo by Kelly Cestari/ASP via Getty Images)

Paramilitary policemen with guns stand guard after a knife attack at a crossroads near Kunming railway station, Yunnan province, March 2, 2014. China blamed militants from the restive far western region of Xinjiang on Sunday for an attack at a train station on the other side of the country by knife-wielding “terrorists” in which at least 33 died, including four of the assailants, who were shot dead. (Photo by Wong Campion/Reuters)

A newly-wed couple kiss near a statue of Lenin in the Crimean city of Simferopol March 1, 2014. The International airport at Simferopol, the main city in Ukraine's Crimea region, said on Saturday its airspace was closed and there were no flights to or from the airport. (Photo by David Mdzinarishvili/Reuters)

A man holds a portrait of Josef Stalin before laying flowers at the grave of the late Soviet leader during a ceremony to mark the 61th anniversary of Stalin's death in the Red Square in Moscow, Russia, March 5, 2014. Josef Stalin died on March 5,1953 at the age of 74. (Photo by Sergei Ilnitsky/EPA)

An anti-government protester is detained by police during clashes with police at Altamira square in Caracas March 6, 2014. A Venezuelan soldier and a motorcyclist died in a confused melee sparked by the opposition's barricading of a Caracas street, officials said on Thursday, boosting the death toll from nearly a month of violence to 20. Demonstrators have for weeks staged rallies and set up barricades to demand the resignation of President Nicolas Maduro, leading to clashes with security forces and government supporters. (Photo by Carlos Garcia Rawlins/Reuters)

Captain Kevin Oprey (bottom L) standing beneath the soaring hull of Cunard's flagship Queen Mary 2, on March 6, 2014. (Photo by James Morgan/AFP Photo)

PBC supporters looking colourful during their clash with Crescent College in the Munster Schools Senior Cup quarter-final replay at The Mardyke, Cork, on March 3, 2014. (Photo by David Keane/Echo/Exam Sport)

Chairman of Sahara India Pariwar Subrata Roy, his face smeared with ink thrown by a lawyer, walks into the Supreme Court in New Delhi, India, Tuesday, March 4, 2014. A lawyer threw ink at the top Indian businessman as he arrived at India's highest court Tuesday to face charges that his company failed to return billions of dollars to investors. Roy's Sahara conglomerate is well known throughout India because it co-owns a Formula One team and sponsored the Indian cricket team until recently. (Photo by AP Photo)

A man climbs up a smooth wooden column to win a contest during the celebrations of Maslenitsa, or Pancake Week, at the Bobrovy Log ski resort in the suburbs of Russia's Siberian city of Krasnoyarsk, March 2, 2014. Maslenitsa is widely viewed as a pagan holiday marking the end of winter and is celebrated with pancake eating, while the Orthodox Church considers it as the week of feasting before Lent. (Photo by Ilya Naymushin/Reuters)

Riot policemen detain a protester during a demonstrator against austerity measures in Athens, on Friday March 6, 2014. Riot police have used tear gas and pepper spray during scuffles with union members protesting austerity measures, during a ban on demonstrations in parts of central Athens due to a visit by German President Joachim Gauck. Scuffles broke out when a group of several dozen demonstrators attempted to break through a police cordon on a major avenue in an effort to march to the Finance Ministry. (Photo by Kostas Tsironis/AP Photo)

Supporters of Aam Aadmi (Common Man) Party (AAP) and India's main opposition Bharatiya Janata Party (BJP) clash during a protest outside the office of BJP in the northern Indian city of Lucknow March 5, 2014. Street clashes marred an announcement on Wednesday that India's general election will start on April 7 as passions run high in a race that pits Hindu nationalist Narendra Modi against the unpopular Nehru-Gandhi family's ruling party. (Photo by Reuters/Stringer)

An anti-government protester holds up a sign as she poses for photographers during a march in Caracas March 2, 2014. Thousands of Venezuelans have escaped to the beach for the long Carnival weekend, heeding President Nicolas Maduro's call to leave behind nearly a month of anti-government protests. Inflation, violent crime, and political differences that divide Venezuelans have fed the country's worst unrest for a decade, where at least 17 people were killed. The sign reads, “The illusion that I'm at the beach, it's the same as the illusion of democracy in Venezuela”. (Photo by Jorge Silva/Reuters)

A man plays the accordion in a park in the Crimean city of Simferopol on March 5, 2014 in Simferopol, Ukraine. As the standoff between the Russian military and Ukrainian forces continues in Ukraine's Crimean peninsula, world leaders are pushing for a diplomatic solution to the escalating situation. The United Nations reports that the poverty rate in Ukraine is now at around 25%, with a falling population in recent years due to both a low fertility rate and migration to other parts of Europe and America. (Photo by Spencer Platt/Getty Images)

Singer Rihanna poses in front of the Eiffel tower on March 5, 2014 in Paris, France. (Photo by Marc Piasecki/GC Images)

The decommissioned Russian Navy Ochakov cruiser was sunk at the entrance to Donuzlav Bay in Crimea, on March 6, 2014. (Photo by Alexei Pavlishak/ITAR-TASS/ZUMA Press)

Leo, aged 9 months, takes part in an experiment at the “Birkbeck Babylab” Centre for Brain and Cognitive Development, on March 3, 2014 in London, England. The experiment uses an electroencephalogram (EEG) to study brain activity whilst the baby examines different objects of varying complexity. Researchers at the Babylab, which is part of Birkbeck, University of London, study brain and cognitive development in infants from birth through childhood. The scientists use various experiments, often based on simple games, and test the babies' physical or cognitive responses with sensors including: eye-tracking, brain activation and motion capture. (Photo by Oli Scarff/Getty Images)

Alex Schweder, a professor, designer and artist, lives in the art installation piece titled, “In Orbit” on March 5, 2014 in the Williamsburg neighborhood of the Brooklyn Borough of New York City. Schweder designed and constructed the space with Ward Shelley, who lives on the top of the hamster wheel-like environment; they are in the midst of living in the wheel for ten days. The space was designed complete with beds, desks, a kitchen and bathroom and chair for relaxing. (Photo by Andrew Burton/Getty Images)

A couple take photographs of giant willow mushroom sculptures at The Royal Botanical Gardens, Kew, in London, on March 6, 2014. (Photo by Peter Macdiarmid/Getty Images)

The son of the owner of an air rifle shop walks past air rifles on display at the shop nearby dozens of small air rifle workshops on March 4, 2014 in Cipacing, Indonesia. The small village is known for its gunsmiths who, despite smaller sales due to competition from big international factories, still make thousands of air rifles annually with most of them made in small back garden operations. (Photo by Ed Wray/Getty Images)

Two unnamed anti-fracking protesters lie in the road after engaging in a “lock-on” near the Barton Moss exploration facility on March 6, 2014 in Barton, England. Campaigners, who have been on the site in Barton Moss Road since November last year, are awaiting a court decision today as to whether they are to be lawfully evicted. (Photo by Dave Thompson/Getty Images)