Images

n this photo released by NASA, astronaut Mike Massimino is photographed through a window of the Space Shuttle Atlantis Sunday, May 17, 2009 during the mission's fourth session of extravehicular activity as work continues to refurbish and upgrade the Hubble Space Telescope. (AP Photo/NASA)

In this photo released by China's Xinhua News Agency, a mother and grandmother mourn for their child who died at a school in the May 12, 2008 earthquake, at a cemetery in Qingchuan County, southwest China's Sichuan Province, Tuesday, May 12, 2009. (AP Photo/Xinhua, Tao Ming)

Soldiers from the U.S. Army First Battalion, 26th Infantry take defensive positions at firebase Restrepo after receiving fire from Taliban positions in the Korengal Valley of Afghanistan's Kunar Province on Monday May 11, 2009. Spc. Zachery Boyd of Fort Worth, TX, far left was wearing 'I love NY' boxer shorts after rushing from his sleeping quarters to join his fellow platoon members. From far right is Spc. Cecil Montgomery of Many, LA and Jordan Custer of Spokan, WA, center. (AP Photo/David Guttenfelder)

A firefighting aircraft drop retardant on the flames burning over a ridge into Rattlesnake Canyon near Santa Barbara, Calif., Thursday, May 7, 2009. The fire remained out of control and firefighters were on alert for a predicted return of a "Sundowner" fierce winds that late in the day can sweep down from the Santa Ynez Mountains towering close behind Santa Barbara. (AP Photo/Chris Carlson) Firefighters from the city of San Bernardino spray around a home threatened by flames approaching Santa Teresita Way as the Jesusita fire burns in Santa Barbara, Calif., Thursday evening, May 7, 2009. (AP Photo/Reed Saxon) Spl. Taylor Jordan from the U.S. Army First Battalion, 26th Infantry lifts weights in the rain at his platoon's base Camp Restrepo in the Korengal Valley in Afghanistan's Kunar Province on Friday May 8, 2009. (AP Photo/David Guttenfelder)

Prime Minister Stephen Harper, right, and Chief of the Defence Staff Walter Natynczyk walk across the tarmac at camp in Kandahar, Afghanistan on Thursday May 7, 2009. THE CANADIAN PRESS/Sean Kilpatrick Kashmiri women voters look on as they wait in a queue outside a polling station on the outskirts of Srinagar, India, Thursday, May 7, 2009. Thursdayís voting is part of Indiaís month long national elections that is expected to elect a new Parliament by early next month. The separatists have called for a strike to protest against the elections. (AP Photo/Mukhtar Khan)

woman, with a baby on her back, mourns on the grave of a relative in the village of Bilge, near the city of Mardin in southeastern Turkey, Wednesday, May 6, 2009. Masked assailants with automatic weapons attacked a celebration Monday night, killing 44 people and injuring six others in what appeared to be the result of a family feud, according to Turkish authorities. Hasan Duruer, the governor of Mardin province, said Wednesday a court has charged eight suspects accused of killing 44 people in an assault on an engagement ceremony in Bilge.(AP Photo/Ibrahim Usta)

A panther reacts from its enclosure at the zoo in Ahmadabad, India, Tuesday, May 5, 2009. (AP Photo/Ajit Solanki)

In this image provided by NASA Cosmonaut Yury Lonchakov, Expedition 18 flight engineer, photographs himself during a spacewalk as he and astronaut Michael Fincke (out of frame), commander, perform maintenance on the International Space Station Tuesday March 10, 2009. (AP Photo/NASA)

A woman walks over parched land at Basudevpur village in Bhadrak district, about 130 kilometers (81 miles) north-east from Bhubaneswar, India, Friday, March 6, 2009. (AP Photo/Biswaranjan Rout)

Workers on tractors harvest soybeans in Campo Novo do Parecis, in the Brazilian state of Mato Grosso, Thursday, March 5, 2009. Brazil is the world's second largest soy producer after the United States and the crop is one of the nation's principal exports. (AP Photo/Maurilio Cheli)