A Palestinian stands near a burning tyre outside a United Nations office during a protest against the U.N. decision to suspend payments for Palestinians, whose houses were damaged during a 50-day war last summer, in Khan Younis in the southern Gaza Strip January 29, 2015. The main U.N. aid agency in the Gaza Strip said on Tuesday a lack of international funding had forced it to suspend payments to tens of thousands of Palestinians for repairs to homes damaged in last summer's war. (Photo by Ibraheem Abu Mustafa/Reuters)

A worker puts the final touches on a giant figure of Rolling Stones singer Mick Jagger (R) near a figure of Russian President Vladimir Putin (L) during preparations for the carnival parade in Nice January 29, 2015. The 131th Carnival of Nice will runs from February 13 to March 1 and will celebrate the “King of Music”. (Photo by Eric Gaillard/Reuters)

Carlos Melendez prepares to feed his pet squirrel “Colita” in downtown San Salvador January 29, 2015. (Photo by Jose Cabezas/Reuters)

Tourists walk on a bridge covered by frosty fog on the Tianmen Mountain resort in Zhangjiajie, Hunan province, January 29, 2015. (Photo by Reuters/Stringer)

Araseli Huang from the local Chinese community walks along the seafront with her bridesmaids during a photographic session on her wedding day in Panama City January 29, 2015. (Photo by Carlos Jasso/Reuters)

Loved ones weep in front of the casket of a slain member of the Special Action Force who was killed in Sunday's clash with Muslim rebels during a service inside a police headquarters in Taguig city, south of Manila January 30, 2015. Philippine President Benigno Aquino urged legislators on Wednesday not to abandon a plan for autonomy for Muslims to end a decades-old insurgency after the clash in which dozens of people were killed, saying doing so would dash hopes for peace. A top official described the clash on Sunday, which shattered a three-year ceasefire, as a “misencounter” during a bid to arrest two militants who had taken refuge with Moro Islamic Liberation Front (MILF) fighters. (Photo by Romeo Ranoco/Reuters)

Children cry in front of the casket for their father, one of the slain members of the Special Action Force (SAF) who were killed in Sunday's clash with Muslim rebels, during a service inside a police headquarters in Taguig city, south of Manila January 30, 2015. (Photo by Romeo Ranoco/Reuters)

Christine Kiangan, widow of Noble Kiangan, one of the 44 members of the elite police commandos killed last Sunday during the Philippines' biggest single-day combat loss in recent years, reaches out to her son as he touches a commando's flag-draped coffin at Camp Bagong Diwa, Taguig city, south of Manila, Philippines, on Friday, January 30, 2015. On Friday, Philippine President Benigno Aquino III promised grieving relatives of the slain commandos that government forces will capture suspected bomb-maker Abdul Basit Usman. (Photo by Bullit Marquez/AP Photo)

Smoke rises from the site of a bomb attack in Baghdad January 30, 2015. At least 12 civilians were killed on Friday morning when two bombs exploded in central Baghdad, security sources said. An initial blast in the Bab al-Sharqi district was followed by a car bomb, the sources said. At least 30 people were also wounded in the attack. (Photo by Ahmad Mousa/Reuters)

Indian Border Security Force (BSF) soldiers dance before their passing-out parade in Humhama on the outskirts of Srinagar January 30, 2015. A total of 333 recruits on Friday were formally inducted into the BSF, an Indian paramilitary force mostly deployed along the borders, after completing 44 weeks of rigorous training in physical fitness, weapons handling, anti-terrorism and protection of human rights, a BSF spokesman said. (Photo by Danish Ismail/Reuters)

A chain is seen wrapped around a road sign for parking, with the coat of arms of the Central Bank seen on it, near the headquarters of the bank in central Moscow January 30, 2015. Russia's central bank cut its key interest rate by two points to 15 percent on Friday, as the economy slides towards recession because of a collapse in global oil prices and Western sanctions over the Ukraine crisis. (Photo by Grigory Dukor/Reuters)

Flight attendants of the long-haul carrier AirAsia X watch a performance during the launch of the company's prospectus in Kuala Lumpur in this June 10, 2013 file photo. Struggling Malaysian long-haul budget carrier AirAsia X announced a $109 million equity rights issue to shore up its weak financing and reshuffled top management in a bid to turn around its fortunes. AirAsia X, an affiliate of Asia's largest budget carrier group AirAsia AIRA.KL, said on January 30, 2015 Chief Executive Officer Azran Osman Rani has resigned with immediate effect and Benyamin Ismail has been appointed acting chief executive. (Photo by Bazuki Muhammad/Reuters)

A member of staff poses with “Les compagnons de la peur” by Rene Magritte at Christie's auction house in London, January 30, 2015. The Magritte is estimated to for between U.S. $4-5.3 million (2.7-3.5 million British pounds) when it is auctioned on Feb. 4 in London. (Photo by Suzanne Plunkett/Reuters)

A visitor looks at an exhibit titled “The Threshold into a Dream” by Indian artist T.V. Santhosh at the India Art Fair in New Delhi January 29, 2015. India's biggest art fair opened in New Delhi this week with a focus on homegrown artists and exhibits inspired by contemporary themes such as the worst floods in the Kashmir region in more than a century. (Photo by Anindito Mukherjee/Reuters)

A Palestinian boy throws stones at an Israeli army bulldozer during clashes following a protest against the nearby Jewish settlement of Qadomem, in the West Bank village of Kofr Qadom near Nablus January 30, 2015. (Photo by Abed Omar Qusini/Reuters)

A fan of Qatar cheers before their semi-final match against Poland at the 24th Men's Handball World Championship in Doha January 30, 2015. (Photo by Mohammed Dabbous/Reuters)

Italy's Minister for Constitutional Reforms and Parliamentary Relations Maria Elena Boschi (C) reacts at the Chambers of Deputies in Rome January 30, 2015. The Italian lawmakers failed to elect a new president in a second round of voting on Thursday, leaving Prime Minister Matteo Renzi hoping to push through his candidate only in a fourth round when the required threshold of votes is lower. (Photo by Alessandro Bianchi/Reuters)

A Houthi fighter secures a street near a gathering for followers of the Houthi movement in Sanaa January 30, 2015. The Houthis have emerged as the dominant faction in Yemen after seizing Sanaa in September. (Photo by Khaled Abdullah/Reuters)

A Munduruku Indian child attends a meeting with the Secretariat-General of the Presidency of the Republic Miguel Rossetto at the Planalto Palace in Brasilia January 30, 2015. The Munduruku Indians are seeking to claim the right to be consulted regarding the construction of infrastructure projects within their territories. (Photo by Ueslei Marcelino/Reuters)

A wounded fighter from the Suqour al-Sham Brigade, which is part of the “Free Syrian Army”, uses his weapon as a crutch as he limps during what activists said were clashes with forces of Syria's President Bashar al-Assad, in the al-Arbaeen mountain area of western Idlib January 30, 2015. (Photo by Khalil Ashawi/Reuters)

PCAH Executive Director Rachel Goslins and actress Alfre Woodard attend the 2015 National Association of Music Merchants show at the Anaheim Convention Center on January 22, 2015 in Anaheim, California. (Photo by Jesse Grant/Getty Images for NAMM)

A Russian man swims in the icy water with a Soviet flag in St. Petersburg, Russia, Sunday January 25, 2015, marking the 71st anniversary of the breaking the Nazi siege of Leningrad during WWII. The temperature in St. Petersburg is around -3 C (27 F). Ice swimming is an annual part of celebrations marking the anniversary of the battle that broke the Siege of Leningrad, the city which is now known as St. Petersburg. (Photo by Dmitry Lovetsky/AP Photo)

Children dressed as children of Leningrad Siege carry candles in St.Petersburg, Russia, Tuesday, January 27, 2015, during a performance in memory of people who perished during the Nazi German and Finnish Siege of Leningrad, now St.Petersburg, during a public action marking the 71st anniversary of the battle that broke the siege. The Nazi German and Finnish siege and blockade of Leningrad was broken on Jan. 18, 1943 but finally lifted Jan. 27, 1944. More than 1 million people perished during the 900-day siege. (Photo by Dmitry Lovetsky/AP Photo)

A man plunges into the icy water in St. Petersburg, Russia, Sunday January 25, 2015, marking the 71st anniversary of the breaking the Nazi siege of Leningrad during WWII. (Photo by Dmitry Lovetsky/AP Photo)

This undated file photo released by NASA shows space shuttle Columbia STS-107 crew members from left to right, front row, commander Rick Husband, mission specialist Kalpana Chawla, pilot William McCool, back row, mission specialist David Brown, mission specialist Laurel Clark, payload commander Michael Anderson and payload specialist Ilan Ramon of Israel. Space Shuttle Columbia disintegrated over Texas on February 1, 2003. (Photo by AP Photo/NASA)

Youngsters take a picture in front of the Greek parliament building in Athens, on Friday, January 30, 2015. Greece’s Parliamentary Budget Office, which makes quarterly recommendations to lawmakers, warned that the country faces default unless a deal with creditors is reached soon. Greece's new government is in open dispute with creditors over the future of the country's bailout program, and is calling for more than half the rescue loans repayments to be cancelled. (Photo by Petros Giannakouris/AP Photo)

DJ Equal attends TAO Sundance on Sunday, January 25, 2015, in Park City, Utah. (Photo by Todd Williamson/Invision for TAO Group/AP Images)

Girls wait to fetch water at a lake in Dala township, Friday, January 30, 2015, in the outskirts of Yangon, Myanmar. (Photo by Khin Maung Win/AP Photo)

A man wearing a mask crosses a bridge during an anti-fracking protest in Preston, northern England January 28, 2015. A local English government council has voted to delay a decision on whether shale gas firm Cuadrilla can progress with two fracking projects, in a case that is being closely watched by the industry and environmental campaigners. (Photo by Darren Staples/Reuters)

Jenny Ketterlin Eckles, left, and Edward Mercer, right, nonnative wildlife technicians with the Florida Fish and Wildlife Conservation Commission, hold a Northern African python, Thursday, January 29, 2015, in Miami. For the last five years, wildlife authorities from multiple agencies have raced to keep the northern African python, also known as the rock python, from spreading beyond a small colony in western Miami-Dade County. (Photo by Lynne Sladky/AP Photo)

Jenny Ketterlin Eckles (L) a non-native Wildlife Biologist, and Edward Mercer, non-native Wildlife Technician, both with the Florida Fish and Wildlife Conservation Commission hold a North African Python during a press conference in the Florida Everglades about the non-native species on January 29, 2015 in Miami, Florida. (Photo by Lynne Sladky/AP Photo)

Decorations on sale in preparation for the Chinese Lunar New Year at Glodok Market, on January 30, 2015 in Jakarta, Indonesia. Glodok Market is a famous destination for Chinese New Year shoppers. Vendors sell Chinese New Year memorabilia such as laterns, lights accessorizes, clothes, and flowers. Chinese new Year is the most important festival in the Chinese calendar and is widely celebrated across Asia. Chinese lunar new year of the sheep which will begin on February 18. (Photo by Agoes Rudianto/Barcroft Media)

Children play under the water that they manage to spill over from a water tank, to cool off from the summer heat, at the Alemao Complex slum in Rio de Janeiro, Brazil, Thursday, January 29, 2015. State Environment Secretary Andre Correa acknowledged the region is “experiencing the worst water crisis in its history”, but said water provisioning would continue as normal through July, even in the worst-case scenario of continued drought over the coming weeks and months. (Photo by Leo Correa/AP Photo)

In this photo taken Tuesday, January 27, 2015, villagers sit on the back of a small truck as they and others flee the recent violence near the city of Maiduguri, Nigeria. Islamic extremists are rampaging through villages in northeast Nigeria's Adamawa state, killing, burning and looting with no troops deployed to protect civilians, fleeing villagers said Wednesday. (Photo by Jossy Ola/AP Photo)

Models take a rest backstage after the Christian Dior's Spring-Summer 2015 Haute Couture fashion collection presented in Paris, France, Monday, January 26, 2015. (Photo by Francois Mori/AP Photo)

Atmosphere at TAO Nightclub at Sundance 2015 on Saturday, January 24, 2015, in Park City, Utah. (Photo by Todd Williamson/Invision for TAO Group/AP Images)

A federal policeman shares his water with his police dog, as he stands outside the police cordon, a day after a gas tank truck exploded outside a maternity hospital, causing most of the building to collapse, in Cuajimalpa on the western edge of Mexico City, Friday, January 30, 2015. The blast occurred Thursday morning, when the truck was making a routine delivery of gas to the hospital kitchen and gas started to leak. Witnesses said the tanker workers struggled to repair the leak while a large cloud of gas formed. (Photo by Rebecca Blackwell/AP Photo)

A undated handout image made available by NASA on 26 January 2015 showing a spiral galaxy similar to the Milky Way glittering with hundreds of X-ray points of light. The galaxy is officially named Messier 51 (M51) or NGC 5194, but often goes by its nickname of the “Whirlpool Galaxy”. Like the Milky Way, the Whirlpool is a spiral galaxy with spectacular arms of stars and dust. M51 is located 30 million light years from Earth, and its face-on orientation to Earth gives us a perspective that we can never get of our own spiral galactic home. By using Chandra, astronomers can peer into the Whirlpool to uncover things that can only be detected in X-rays. In this new composite image, Chandra data are shown in purple while optical data from the Hubble Space Telescope are red, green and blue. Chandra X-ray Center is releasing a set of images that combine data from telescopes tuned to different wavelengths of light, as it celebrates the International Year of Light. (Photo by EPA/NASA/CXC)

A grave digger works in the U.S.-built cemetery for “safe burials” on January 27, 2015 in Disco Hill, Liberia. The cemetery, operated by USAID-funded Global Communities, has buried almost 300 people in its first month of operation, with increasingly fewer of the bodies coming from Ebola Treatment Units (ETUs), as infection rates decline. The cemetery, where burial team members wear protective clothing, (PPE), has been seen in Monrovia as a major achievement, as families of deceased loved ones are permitted to view the burials, important in Liberian culture. In an effort to control the Ebola epidemic in 2014, the Liberian government had ordered the cremation of all deceased in the capital, often further traumatizing surviving family members and unintentionally encouraging many families to hide their dead for secret burials. (Photo by John Moore/Getty Images)

South Korean firefighters wearing protective gear take care of a mock victim during an exercise against a possible terrorist attack in Seoul, South Korea, Thursday, January 29, 2015. The Seoul Metropolitan Police Agency said that the exercise is a part of preparation to prepare the city since threats of terrorism are growing worldwide. (Photo by Ahn Young-joon/AP Photo)

A Palestinian activist, Lema Nazeeh, argues with an Israeli soldier during clashes between security forces and Palestinians from the West Bank village of Bilin on January 30, 2015 in Bilin, west of Ramallah, following a march to protest against Israeli settlements. Israel published tenders to build 450 new settler homes in the occupied West Bank, a watchdog said, in a plan denounced by the Palestinians as a “war crime”. (Photo by Abbas Momani/AFP Photo)

A woman walks past children playing on the beach at Camps Bay, near the city of Cape Town, South Africa, Saturday, January 24, 2015. Camps Bay is a affluent suburb forming a integral part of the Western Cape tourist root in South Africa. (Photo by Schalk van Zuydam/AP Photo)

A family have their photo taken on two giant chairs that form part of a city art project at Camps Bay, near the city of Cape Town, South Africa, Saturday, January 24, 2015. (Photo by Schalk van Zuydam/AP Photo)