Palestinian youths practice their parkour skills in Jerusalem's Old City February 24, 2014. (Photo by Ammar Awad/Reuters)

A motor cycle driver, left, argues with demonstrator blocking the highway at Altamira neighborhood in Caracas, Venezuela, Monday, February 24, 2014. Traffic has come to a halt in parts of the Venezuelan capital because of barricades set up by opposition protesters across major thoroughfares. The protests are part of a wave of anti-government demonstrations that have swept Venezuela since Feb. 12 and have resulted in at least 10 deaths. The protests in the capital Monday were peaceful. Police and National Guard troops stood by but did not act to remove the barricades despite the effect on the morning commute. (Photo by Rodrigo Abd/AP Photo)

Luo Jinsha drives his self-made aircraft during a test flight on the outskirts of Shanghai, February 26, 2014. Luo, 28, a migrant worker living in Shanghai, spent around eight months and 40,000 yuan ($6,529) to build the plane to fulfil his dream to fly. Despite failing during the first test flight, Luo said he will not give up hope on improving his plane so as to eventually fly it successfully. The aircraft was able to move quickly on the ground but could not take to the air on second attempt. (Photo by Aly Song/Reuters)

A carnival enthusiast works on a papier mache figure for a carnival float depicting Bishop Franz-Peter Tebartz-van Elst of Limburg, in preparations for the upcoming Rose Monday carnival parade in Mainz February 25, 2014. Tebartz-van Elst reaped stiff criticism from German Catholics and the title “luxury bishop” in the media after it was revealed he spent at least 30 million euros ($40.69 million) on a new residence complex. (Photo by Ralph Orlowskk/Reuters)

A child waves as he gathers with others during a rally outside the Royal Thai Police headquarters in central Bangkok February 26, 2014. Shots fired by unknown gunmen on Wednesday rattled parts of the Thai capital where anti-government protesters have set up camp for weeks, with small but occasionally deadly bombs and gunfire fast becoming the new norm in the city. (Photo by Athit Perawongmetha/Reuters)

Venezuela's President Nicolas Maduro greets supporters during a rally with farmers in Caracas February 26, 2014. Pope Francis called on Wednesday for an end to violence in Venezuela that has killed at least 13 people and urged politicians to take the lead in calming the nation's worst unrest for a decade. (Photo by Tomas Bravo/Reuters)

Pope Francis blesses a baby dressed as the Pope as he arrives to lead his Wednesday general audience at the Vatican February 26, 2014. (Photo by Osservatore Romano/Reuters)

Priscilla Presley stands in the “60 years of Elvis” exhibit inside an annex at Graceland on Friday, February 21, 2014, in Memphis, Tenn. The exhibit, which opens Monday, February 24, 2014 features jump suits worn by Presley, an organ played in his California home, a copy of the original “That’s All Right” record and other miscellaneous Elvis items. (Photo by Lance Murphey/AP Photo)

A “Free Syrian Army” fighter runs to take cover after launching a mortar towards forces loyal to Syria's President Bashar al-Assad in the Jabal al-Akrad area in Syria's northwestern Latakia province February 25, 2014. (Photo by Alaa Khweled/Reuters)

National Guards look on at a fire under the tank they are in, started after the tank was hit by a Molotov cocktail, during a protest against Venezuelan President Nicolas Maduro's government in San Cristobal, about 410 miles (660 km) southwest of Caracas, February 27, 2014. Pope Francis called on Wednesday for an end to violence in Venezuela that has killed at least 13 people and urged politicians to take the lead in calming the nation's worst unrest for a decade. (Photo by Reuters/Stringer)

Demonstrators use slingshots against National Guards during a protest against Venezuelan President Nicolas Maduro's government in San Cristobal, about 410 miles (660 km) southwest of Caracas, February 27, 2014. U.N. Secretary-General Ban Ki-moon and Pope Francis called on Wednesday for an end to violence in Venezuela that has killed at least 13 people and urged politicians to take the lead in calming the nation's worst unrest in a decade. (Photo by Carlos Garcia Rawlins/Reuters)

Models wear creations for Balmain's ready-to-wear fall/winter 2014-2015 fashion collection, presented in Paris, Thursday, Feb.27, 2014. (Photo by Thibault Camus/AP Photo)

Bullets holes seen on the music advertising poster in Independence Square, the epicenter of the country's recent unrest, Ukraine, on February 24, 2014. The text reads “Please do not touch, save for investigation”. Ukraine's acting government issued a warrant Monday for the arrest of President Viktor Yanukovych, last reportedly seen in the pro-Russian Black Sea peninsula of Crimea, accusing him of mass crimes against protesters who stood up for months against his rule. (Photo by Efrem Lukatsky/Associated Press)

A couple in clown costumes touch noses during the Boitata block party, a pre-Carnival celebration in Rio de Janeiro, Brazil, Sunday, February 23, 2014. People gathered for one of the many parades before the official start of Carnival on February 28. (Photo by Leo Correa/AP Photo)

A Bulgarian Muslim bride Kadrie Avdikova has her face decorated with a special wedding makeup at the end of a two-day wedding ceremony in the Rhodope Mountains village of Ribnovo, 200 kilometers (124 miles) south of capital Sofia, Sunday, February 23, 2014. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigor among the Pomaks – Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite, her face is covered in thick, chalky white paint and decorated with colorful sequins. (Photo by Valentina Petrova/AP Photo)

A man confronts riot police during a protest against the upcoming World Cup soccer tournament in Sao Paulo, Brazil, Saturday, February 22, 2014. Hundreds of protesters gathered demonstrating against the billions of dollars being spent to host this year's World Cup while the nation's public services remain in a woeful state. The protest started peacefully, but adherents to the Black Block anarchist tactics vandalized banks and clashed with police, who used tear gas and stun grenades to disperse the violent demonstrators. (Photo by Andre Penner/AP Photo)

A statue of former Chinese leader Mao Zedong is prepared for removal to the Chongqing Industry Museum in southwest China's Chongqing Municipality on Tuesday Feb. 25, 2014. The sculpture was built in 1968 and erected in a state-run factory which went bankrupt later and was transformed into a logistics park. (Photo by AP Photo)

A reveler in a carnival costume attends the opening of the Lucerne carnival in Lucerne, Switzerland, on the so-called dirty Thursday, February 27, 2014. (Photo by Sigi Tischler/AP Photo/Keystone)

Monks dressed as Tibetan Buddhism characters attend a religious ceremony, known as “Da Gui” or beating ghost, to celebrate the upcoming Tibetan New Year which starts on March 1 at Yonghegong Lama Temple, in Beijing February 28, 2014. This Tibetan ceremony is held annually at the end of the first lunar month with mask dancing to expel ghosts, according to a press release. (Photo by Jason Lee/Reuters)

A collapsed suspension bridge over a spring is pictured at Tam Duong district, in the northwestern mountainous province of Lai Chau on February 24, 2014. At least seven people were killed and dozens more injured when a suspension bridge collapsed in northern Vietnam, an official said. (Photo by AFP Photo/Vietnam News Agency)

Tayakorn Yos-ubon, the father of two children killed in Sunday's bomb attack on an anti-government protest site, is embraced by his family as he breaks down during a ceremony at a hospital when he collects their bodies in Bangkok, Thailand, on February 24, 2014. Two young siblings, 6-year-old girl Patcharakorn and her 4-year-old brother Korawit, along with another woman were killed in an apparent grenade attack against anti-government protesters occupying an upscale shopping area of Thailand's capital day. (Photo by Wason Wanichakorn/Associated Press)

A woman smokes a cigar during the competition for the longest ash in Havana, on February 27, 2014. Cigar enthusiasts from around the world come to Cuba during the annual Cigar Festival to visit tobacco farms and factories and savor new cigar brands. (Photo by Ramon Espinosa/Associated Press)

A participant in the competition for the longest ash is dizzied by the smoke of his cigar during the XVI Cuba Cigar festival in Havana, on February 27, 2014. (Photo by Ramon Espinosa/Associated Press)

Katy Perry kisses Miley Cyrus at the LA Staple Center “Bangerz Tour” concert on February 22, 2014 in Los Angeles California. (Photo by MAXA/Landov)

Artist Toby Crowther adds finishing touches to a giant billboard made from over 5,000 bananas stands on Clapham Common in south London, to mark the start of the Fairtrade Fortnight's “Stick with Foncho to Make Bananas Fair” campaign, on February 24, 2014. (Photo by David Parry/PA)

Members of the Dominican Armed Forces march on the streets of Santo Domingo, on February 27, 2014. (Photo by Orlando Barria/EPA)

Cossacks share a laugh next to a war monument at a gathering of pro-Russian supporters outside the Crimean parliament building in Simferopol, Ukraine, on February 28, 2014. According to media reports Russian soldiers have occupied the airport at nearby Sevastapol while soldiers whose identity could not be confirmed have stationed themselves at Simferopol International Airport in moves that are raising tensions between Russia and the new Kiev government. Crimea has a majority Russian population and armed, pro-Russian groups have occupied government buildings in Simferopol. (Photo by Sean Gallup/Getty Images)

A militia member stationed at a barricade near Independence Square in Kiev smells the flowers at a memorial to those killed in clashes with police the week before, on February 28, 2014. Former president Viktor Yanukovych gave a press conference Friday from Rostov-on-Don, Russia, calling his ouster a “gangster coup” and saying the secessionist unrest in Crimea was a natural reaction to events in Kiev. (Photo by Uriel Sinai/The New York Times)

A woman poses for a picture with the figures of Soviet soldiers at the base of the Soviet Army monument, parts of which have been painted in the colours of the Ukranian flag by an unknown person, in Sofia February 23, 2014. The Ukrainian flag and the statement “Glory to Ukraine!” in Ukrainian was painted on an imposing Soviet Army Monument in Bulgarian capital Sofia overnight as an artistic support for the struggle of the Ukrainian protesters to transform the former Soviet Republic. (Photo by Pierre Marsaut/Reuters)

A model wears a creation from Guy Laroche's ready-to-wear fall/winter 2014-2015 fashion collection presented in Paris, Wednesday, February 26, 2014. (Photo by Zacharie Scheurer/AP Photo)

An unidentifed guest wears stockings ornated with Eiffel Towers after Dior's ready-to-wear fall/winter 2014-2015 fashion collection presented in Paris, Friday, February 28, 2014. (Photo by Michel Euler/AP Photo)

An Indian woman dressed as Hindu Goddess Kali participates in a “Shivratri” procession in Allahabad, India, Thursday, Feb. 27, 2014. “Shivaratri”, or the night of Shiva, is dedicated to the worship of Lord Shiva, the Hindu god of death and destruction. (Photo by Rajesh Kumar SinghAP Photo)

Topless dancers wait for a moment during a street parade of Banda da Rua do Mercado in Rio de Janeiro, Brazil, on Februrary 27, 2014. Rio's carnival will start officially from tomorrow for 5 days and have around 470 groups on streets. Samba school parades will have a peak at Sambodromo on March 2 and 3, 2014. (Photo by Yasuyoshi Chiba/AFP Photo)

Armed men patrol the street outside Simferopol's airport in the Crimea region of Ukraine, on February 28, 2014. As the possibility of a showdown between Ukraine's fledgling government and the Kremlin appeared to grow Friday, armed men whose uniforms bore no insignia took up positions at the Simferopol and Belbek airports as Interior Minister Arsen Avakov warned of a direct provocation, but there was no sign of any violence. (Photo by Sergey Ponomarev/The New York Times)