An American flag adorns a grave marker at the United States Soldiers' and Airmen's Home National Cemetery (USSAH) in Washington, Friday, May 27, 2011, in preparation for Memorial Day. USSAH National Cemetery is the first national cemetery and is the predecessor of Arlington National Cemetery.
Credit: AP Photo/Pablo Martinez Monsivais
Tubers float down the Comal River on Friday, May 27, 2011, in New Braunfels, Texas.
Credit: AP Photo/Eric Gay
An aerial view of Kabul city is seen from atop a hill as a street dog walks in Kabul, Afghanistan, Friday, May 27, 2011.
Credit: AP Photo/Mustafa Quraish
The Sydney Opera House is illuminated by colored patterns during the Vivid Light Festival in Sydney, Australia, Friday, May 27, 2011.
Credit: AP Photo/Rob Griffith
A thunderstorm builds over a devastated Joplin, Mo. neighborhood, Friday, May 27, 2011. An EF-5 tornado tore through much of the city Sunday, damaging a hospital and hundreds of homes and businesses, killing at least 126 people.
Credit: AP Photo/Charlie Riedel
A Jaguar Land Rover car sits at an assembly plant in Pune, India, Friday, May 27, 2011. The Tata Group-owned luxury carmaker opened it's first assembly plant in India Friday.
Credit: AP Photo/Rafiq Maqbool
A ring-tailed lemur reacts as a keeper walks through his new enclosure at Taronga Zoo in Sydney, Australia, Friday, May 27, 2011. The bachelor group of five rare primates were put on display for the first time on Friday after being transferred from another zoo in Dubbo.
Credit: (AP Photo/Rob Griffith
Anti-government protestors attend Friday prayers during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, Friday, May 27, 2011. .