Male panda Yang Guang eats bamboo in a bid to bulk up ahead of breeding season at Edinburgh Zoo. Wednesday February 20, 2013 . (Andrew Milligan/PA Wire)

A protester reaches his hand out to a riot police officer after clashes with demonstrators in a protest against high electricity prices in Sofia, on late Tuesday, Feb. 19, 2013. Bulgaria's prime minister announced on Tuesday that the license held by a Czech company for power distribution in parts of the Balkan country will be revoked following protests against high electricity prices. (AP Photo/Valentina Petrova)

A resident walks past boarded up houses on Martensen Street, Liverpool where some properties may be sold for a little as £1. Wednesday February 20, 2013. (Martin Rickett/PA Wire)

The Duchess of Cornwall, meets Charlie, a black labrador puppy who will be trained to detect Type 1 diabetes, as she visits Medical Detection Dogs (MDD) in Milton Keynes, the charity that trains dogs to assist people with life threatening health conditions such as aggressive Type 1 diabetes and to research the early diagnosis of cancer by smelling samples from hospitals in Buckinghamshire. February 20, 2013. (Carl Court/PA Wire)

Sir Quentin Blake proudly holds his Knighthood, which he received at an Investiture Ceremony at Buckingham Palace, in central London. Wednesday February 20, 2013. (Steve Parsons/PA Wire)

Members of pro-communist union PAME gather outside Greece's parliament during a protest in Athens, Wednesday, Feb. 20, 2013. Unions have launched another general strike against austerity measures in Greece, amid predictions unemployment in the crisis-hit country will reach 30 percent this year. (AP Photo/Dimitri Messinis)

In this image taken from video from KCTV, firefighters battle a massive fire at Country Club Plaza in Kansas City. A car crashed into a gas main Tuesday evening in an upscale Kansas City shopping district, sparking a massive blaze that engulfed an entire block and caused multiple injuries, police said. (AP Photo/KCTV) MANDATORY CREDIT: KCTV

People walk past vandalized cars at the premises of a factory on the first day of a two day strike in Noida, a suburb of New Delhi, India, Wednesday, Feb. 20, 2013. Sporadic violence has broken out in India at the beginning of a two-day strike by labor unions protesting rising prices and government policies to open the economy. Millions of bank and factory workers stayed away from work and public transport was shut down Wednesday after India's major trade unions called the countrywide strike. (AP Photo)

Pakistani Shiite Muslims prepare to bury bombing victims in Quetta, Pakistan on Wednesday, Feb. 20, 2013. Pakistani Shiites buried their kin killed in a massive bombing last weekend in the southwestern city of Quetta but the funeral on Wednesday was marred by gunfire as both protesters and police fired into the air. (AP Photo/Arshad Butt)

A domesticated elephant halts at a traffic intersection in New Delhi, India, Wednesday, Feb. 20, 2013. There are an estimated 28,000 wild elephants in India, along with thousands of domesticated ones that do everything from performing in shows to carrying heavy loads in the country's big cities. (AP Photo/Altaf Qadri)

A rider from the Belarus team and opening ceremony performers ahead of the opening ceremony on day one of the UCI Track Cycling World Championships at the Minsk Arena, Minsk. Wednesday February 20, 2013. (Tim Ireland/PA Wire)