Chad Layton, a member of the Detroit Pistons Flight Crew, performs an aerial dunk on the Highland Park Community High School’s refurbished basketball court, Oct. 25, 2011, in Highland Park, Mich. The Pistons helped refurbish the school’s outdoor basketball courts with help from a Sprite Spark Parks grant. (Carlos Osorio/AP Photo)

A double rainbow is seen over central London,  Oct. 26, 2011. (Leon Neal/AFP/Getty Images)

Athletes compete during the women’s 110m hurdles of the heptathlon event at the Pan American Games in Guadalajara, Mexico, Oct. 25, 2011. (Julie Jacobson/AP Photo)

Farmers raise their fists as they take part in a rally against Japan’s participation for negotiations in the U.S.-led Trans-Pacific Partnership, known as the TPP, in Tokyo, Japan, Oct. 26, 2011. U.S. Pres. Obama is seeking to double American exports by 2015, in part through boosting shipments to Asian nations. Nine nations are involved in negotiating the U.S.-led TPP trade accord. (Junko Kimura/Bloomberg/Getty Images)

People walk along flooded streets after a heavy downpour in Ikorodu, just outside of Lagos, Nigeria, Oct. 26, 2011. Seasonal rains have sent water flowing over riverbanks again in Nigeria, raising the risk of cholera and disease as government appears unable to cope with the flooding. (Sunday Alamba/AP Photo)

Protesters link arms across Peachtree Street as police move in to make arrests after Mayor Kasim Reed revoked his executive order allowing the protesters to camp out in Woodruff Park, Oct. 25, 2011 in Atlanta. (David Goldman/AP Photo)

Mitch Buthod of the Boulder Forestry Dept. clears large limbs from the yard of a home in Boulder, Co. Wednesday, Oct. 26, 2011. A winter storm has knocked out power to at least 62,000 homes and businesses along the Front Range. The area from Boulder north to Larimer County has gotten most of the snowfall in the eastern half of the state. ( Paul Aiken/The Daily Camera/AP Photo)

Fifteen people were arrested and several injured as Dresden’s supporters set fireworks in the stadium during the German Soccer Cup match (DFB Pokal) between German champion Borussia Dortmund and second division club Dynamo Dresden, Dortmund, Germany, Oct. 25, 2011. (Martin Meissner/AP Photo)

A woman stands among tents in a shelter for flood victims at the closed Don Muang Airport on Oct. 26, 2011 in Bangkok, Thailand. The country is experiencing the worst flooding in 50 years with the flood waters threatening to disrupt Thailand’s tourism industry. (Athit Perawongmetha/Getty Images)

A Kashmiri girl and a boy collect saffron flowers after plucking them from a farm in Pampore, about 20 kilometers (13 miles) south of Srinagar, India, Oct. 26, 2011. (Mukhtar Khan/AP Photo)