A Sudanese refugee woman carries food supplies March 21 at Abu Shouk, the largest camp in North Darfur for internally displaced people, outside El Fasher, the capital of Darfur, in Sudan. Nasser Nasser/AP hide caption

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Yusuf Masudi is a manager at Unilever Tea's Mabroukie Estate in Limuru, Kenya. Mabroukie is one of Kenya's oldest commercial tea plantations. Gwen Thompkins/NPR hide caption

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Courtesty of Jay Scruggs

U.S. Secretary of State Hillary Rodham Clinton is welcomed by Nigerian President Umaru Yar'Adua at the state house in Abuja, Nigeria Wednesday, Aug. 12, 2009. AP hide caption

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