A Thai man smokes a cigarette as he sits in the flooded streets October 10, 2011 in Ayutthaya, Thailand. Around 200 factories closed in the central Thai province of Ayutthaya because of flooding, which is posing a threat to Bangkok as well. Over 260 people have died in flood-related incidents since late July according to the Department of Disaster Prevention and Mitigation. Some areas of the country are experiencing the worst flooding in 50 years, mainly in the centre, north and northeast. (Photo by Paula Bronstein /Getty Images)

An employee of the British Museum examines a silver coin dating from 900 AD which is part of the Silverdale Viking Hoard on December 14, 2011 in London, England. The hoard, which was discovered by local metal-detectorist Darren Webster in North Lancashire, comprises of 201 silver objects including arm-rings, coins, finger-rings, ingots, brooch fragments and fine wire braid. (Photo by Oli Scarff/Getty Images)

North Korean defectors, now living in South Korea, prepare to release balloons carrying propaganda leaflets denouncing North Korea's late leader Kim Jong-Il at Imjingak, near the Demilitarized zone (DMZ) separating South and North Korea on December 28, 2011 in Paju, South Korea. (Photo by Chung Sung-Jun/Getty Images)

Participants learn how to survive in the wild, including tips on how to make it through a zombie invastion at a “Zombie First Responder” course March 11, 2012 in Sandy, Oregon. In an intensive 2-day curriculum participants train in everything from wilderness and urban survival, nerf or nerd weaponry, stealth and evasion, and proper zombie “disposal”. (Photo by Natalie Behring/Getty Images)

In this handout GOES satellite image provided by the National Oceanic and Atmospheric Administration (NOAA), Irene reaches hurricane strength as it moves across Puerto Rico towards Hispaniola August 22, 2011 in the Caribbean Sea. Irene, the first hurricane of the Atlantic storm season, brought torrential rains and winds to Puerto Rico, downing trees and powerlines and flooding streets. The expected path will bring Irene through the Bahamas and is likely to hit Florida and up the east coast of the U.S. (Photo by NOAA via Getty Images)

Patrick Boyle, The Earl of Glasgow and his son David, Viscount Kelburn pose at their home Kelburn Castle on August 30, 2011 in Largs, Scotland. The Earl of Glasgow has asked Historic Scotland if the graffiti can remain as a permanent feature of the Castle. The local council allowed the mural to be painted on the wall by Brazilian artists in 2007, with a three year limit put on the graffiti pending the start of rendering work at the castle.(Photo by Jeff J Mitchell/Getty Images)

Gengis “Lil Ceng” Ademoski (L) and Khaled “KC” Chaabi (R) of the four time world champion Berlin dance troupe “Flying Steps” strike a freeze on a piano played by muscian Jia Lim (C) of Singapore at the 17th century waterfront area of Nyhavn in build up to the Red Bull Flying Bach European Tour, a show that features the cultural clash of break dancing with the classical music of Johann Sebastian Bach, on August 30, 2011 in Copenhagen, Denmark. (Photo by Dean Treml/Red Bull via Getty Images)

In this handout image provided by NASA, the space shuttle Endeavour is seen on launch pad 39a as a storm passes by prior to the rollback of the Rotating Service Structure (RSS) April 28, 2011, at Kennedy Space Center in Cape Canaveral, Florida. During the 14-day mission, Endeavour and the STS-134 crew will deliver the Alpha Magnetic Spectrometer (AMS) and spare parts, including two S-band communications antennas, a high-pressure gas tank and additional spare parts for Dextre. Launch is targeted for April 29 at 3:47 p.m. EDT.