An internally displaced Congolese child waits with others in the rain for aid to be distributed in Kibati, north of Goma, eastern Congo, Wednesday Aug. 8, 2012. Drenching rain punctuated by frightening bursts of thunder and forked lightning add to the misery of some of the 280,000 refugees from Congo's eastern rebellion, whose plight is highlighted by a visit from the U.N. humanitarian chief Baroness Valerie Amos. (AP Photo/Jerome Delay)

A competitor picks up a shot during the shot put decathlon during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Matt Dunham)

Internally displaced Congolese children shelter from the rain under plastic sheets as they wait for aid to be distributed in Kibati, north of Goma, eastern Congo, Wednesday Aug. 8, 2012. Drenching rain punctuated by frightening bursts of thunder and forked lightning add to the misery of some of the 280,000 refugees from Congo's eastern rebellion, whose plight is highlighted by a visit from the U.N. humanitarian chief Baroness Valerie Amos. (AP Photo/Jerome Delay)

Timo Boll of Germany competes against Leung Chu Yan of Hong Kong in the men's team table tennis bronze medal match at the 2012 Summer Olympics, Wednesday, Aug. 8, 2012, in London. (AP Photo/Sergei Grits)

Pakistani boys read verses of the Quran while waiting for other children to attend a religious class, during the Muslim holy fasting month of Ramadan, in a mosque on the outskirts of Islamabad, Pakistan, early Wednesday, Aug. 8, 2012. Muslims throughout the world are marking the month of Ramadan, the holiest month in Islamic calendar. (AP Photo/Muhammed Muheisen)

United States' Ashton Eaton, left, and Ukraine's Voleksiy Kasyanov, right, cross the finish line in a men's decathlon 100-meter heat during the athletics in the Olympic Stadium at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Anja Niedringhaus)

Japan's players celebrate winning their classification hockey match against South Africa at the Riverside Arena at the 2012 Summer Olympics, London, Wednesday, Aug. 8, 2012. (AP Photo/Kirsty Wigglesworth)

Residents go back to their homes along a flooded area as it slowly inches down in Marikina City, east of Manila, Philippines, Wednesday Aug. 8, 2012. Widespread flooding battered a million others and paralyzed the Philippine capital began to ease Wednesday as cleanup and rescue efforts focused on a large number of distressed residents, some still marooned on their roofs. (AP Photo/Aaron Favila)

A resident carries a monitor along a flooded road in Marikina City, east of Manila, Philippines, Wednesday Aug. 8, 2012. Widespread flooding battered a million others and paralyzed the Philippine capital began to ease Wednesday as cleanup and rescue efforts focused on a large number of distressed residents, some still marooned on their roofs. (AP Photo/Aaron Favila)