Newly commissioned 2nd lieutenants throw their caps in the air as a team of F-16 Air Force Thunderbirds fly over the 2011 graduating class of the U.S. Air Force Academy on May 25, 2011 in Colorado Springs, Colorado. A total of 1,021 graduates received their diplomas in front of their families and dignitaries at the Academy's Falcon Stadium. (Photo by John Moore/Getty Images)

The sun shines on Weston-super-Mare's Sand Sculpture Festival and the sand art currently being displayed on July 4, 2011 in Weston-Super-Mare, England. Now in its fourth year and with a Amazon Jungle theme for 2011, the seaside resort's event attracts top sand sculptors from across the world and runs throughout the summer months. (Photo by Matt Cardy/Getty Images)

A woman views the Mummy of Meresamun in the Ashmolean Museum's new exhibition of artifacts from ancient Egypt and Nubia on November 23, 2011 in Oxford, England. The new gallery is displaying for the first time in decades some of the finest Egyptian and Nubian artifacts in the UK. The Egyptian collection opens to the public from November 26, 2011. (Photo by Oli Scarff/Getty Images)

A man flies a kite made of 110 Tukkal or paper lanterns for the Hindu festival of “Makar Sankranti”, which marks the start of spring, in Ahmedabad January 13, 2011. (Photo by Amit Dave/Reuters)

A U.S. Army soldier with the 10th Special Forces Group and his military working dog jump off the ramp of a CH-47 Chinook helicopter from the 160th Special Operations Aviation Regiment during water training over the Gulf of Mexico as part of exercise Emerald Warrior 2011 on March 1, 2011. (Photo by Tech. Sgt. Manuel J. Martinez/U.S. Air Force)

A train attendant helps a passenger to adjust her seat at the business class carriage on a CRH 380A bullet train Thursday, June 16, 2011. (Photo by Reuters/China Daily)

Moroccan-born pole dancer Karima El Mahroug, nicknamed “Ruby the Heart Stealer” attends the traditional Vienna Opera Ball at the state opera on March 3, 2011 in Vienna, Austria. (Photo by Andreas Rentz/Getty Images)

Jesinta Campbell arrives at “Bridesmaids” Celebrity Girls Night Out to celebrate the Australian premiere at Event Cinemas George Street on June 14, 2011 in Sydney, Australia. (Photo by Lisa Maree Williams)