A participant works on a laptop on the first day of the 28th Chaos Communication Congress (28C3) – Behind Enemy Lines computer hacker conference on December 27, 2011 in Berlin, Germany. The Chaos Computer Club is Europe's biggest network of computer hackers and its annual congress draws up to 3,000 participants. (Photo by Adam Berry/Getty Images)

South Korean soldiers participate in a winter river crossing operation in preparation for a possible North Korean attack on February 8, 2012 in Yeoju, South Korea. The Korean peninsula is the world's last Cold War frontier as stalinist North Korea and pro-western South Korea have been technically at war since the 1950-53 conflict. (Photo by Chung Sung-Jun/Getty Images)

A new 3D IMAX screen is installed at IMAX Darling Harbour on February 9, 2012 in Sydney, Australia. The new 3D screen at 29.5 metres by 35.7 metres will replace the former screen at IMAX Darling Harbour as the largest in the world. (Photo by Matt King/Getty Images)

A sheep and a gentleman farmer take to the streets of London today to mark the launch the new English Countryside chapter of Farmville, Zynga's global social gaming phenomenon on March 29, 2011 in London, England. Farmville English Countryside gives players all-new crops, buildings and decorations located in the beautiful English Countryside. (Photo by Gareth Cattermole/Getty Images for Farmville)

Prince Philippe and Princess Letizia of Spain meet with Israeli president Shimon Peres at the presidential residence on April 11, 2011 in Jerusalem, Israel. The Spanish Royal couple is on their first official visit to Israel together. The Prince's parents, the King and Queen of Spain last visited in 1993.

Former U.S. Vice presidential candidate and Alaska Governor Sarah Palin (R) greets some of the thousands of motorcycle enthusiasts and military veterans participating in 'Rolling Thunder' rally May 29, 2011 in Arlington, Virginia. Although not an official guest, former U.S. Vice presidential candidate and Alaska governor Sarah Palin is expected to participate in today's motorcycle parade from the Pentagon to the National Mall.

In this handout image provided by the European Space Agency (ESA) and NASA, the International Space Station and the docked space shuttle Endeavour orbit Earth during Endeavour's final sortie on May 23, 2011 in Space. Italian astronaut Paolo Nespoli captured the first-ever images of an orbiter docked to the International Space Station from the viewpoint of a departing vessel as he returned to Earth in a Soyuz capsule. (Photo by Paolo Nespoli - ESA/NASA via Getty Images)

A visitor to The Brooklands Double Twelve Motorsport Festival admires a 1914 Morgan Three Wheeler in front of a Hawker P1127 prototype jet aircraft on June 18, 2011 in Weybridge, England. Two hundred vintage cars are competing in various races, tests and speed trials over the two day event held at the Brooklands Museum. Brooklands was the world's first purpose-built, permanent motorsport venue that opened in 1907. (Photo by Peter Macdiarmid/Getty Images)