The USAF Thunderbirds perform at the Homestead Air Force Base in Homestead, Florida on Nov. 8 2009. The Air Force held its first air show in seventeen years hosting over one hundred thousand spectators throughout the weekend event. UPI/Joe Marino-Bill Cantrell

A boy looks over an original segment of the Berlin Wall at the Bernauer Strasse memorial on the 20th anniversary of the fall of the Wall on November 9, 2009 in Berlin. Later today the city will commemorate the anniversary with world leaders congregating at the Bradenburg Gate in the German capital. UPI/David Silpa

An Afghan man looks on while passing by Darul-Aman palace in western Kabul, Afghanistan on October 31, 2009. Now in ruins, the Darul-Aman Palace was once the masterpiece of Kabul built by King Amanullah. UPI/Hossein Fatemi

David Brink, director of Electronics and Motors at Brose, Inc., demonstrates the force of power windows with a carrot outside the National Press Club on November 2, 2009 in Washington. It takes just 22 pounds of upward force to suffocate or injure an infant. Power windows exert an upward force of 30-80 pounds. UPI/Madeline Marshall

Young Afghans wear face masks as they go about their business in the main market in Kabul on November 2, 2009 in Kabul, Afghanistan. The Afghan government have ordered the closure of all educational institutions for a period of three weeks due to the sudden rise of H1N1 flu cases and after the first death from the virus last week. UPI/Hossein Fatemi

Press Secretary Robert Gibbs, dressed as Darth Vader in the east room of the White House, and son Ethan celebrate Halloween on Saturday, October 31, 2009. The President and First lady invited more than 2,000 local school children to take part in the festivities that includes performers and Halloween themed decorations. UPI/Kristoffer Tripplaar/Pool

First Lady Michelle Obama helps students from Bancroft Elementary School, in the District of Columbia, wheel sweet potatoes from the White House Kitchen Garden during the Fall Harvest in Washington on October 29, 2009. UPI/Alexis C. Glenn

Akasha, 14-month-old Bengal tiger cub, plays with pumpkins in celebration of Halloween at Odin's Temple of the Tiger exhibit at Six Flags Discovery Kingdom in Vallejo, California on October 28, 2009. UPI/Ken James

Lantern walkers write "350" using long-exposure photography on the International Day of Climate Action in Sydney, Australia on October 24, 2009. The number 350 represents what scientists say is the safe upper limit for carbon dioxide in the Earth's atmosphere. UPI/Peter Solness/350.org

The Dallas Desire take the field for their Lingerie Football League game against the Los Angeles Temptation October 23, 2009 in Grand Prairie, Texas. October 23, 2009 in Grand Prairie, Texas. Dallas won 24-12 and moves to 3-0. The 10-team league features women playing full contact football on a 25-yard wide by 50-yard long field. (UPI Photo/Ian Halperin)