A family of Somali refugees, including an elderly woman pushed in a wheelbarrow because she was too frail to walk, waits in hopes of being bussed to another camp to receive ration cards, at a reception center in Dagahaley Camp, outside Dadaab, Kenya, Monday, July 11, 2011. U.N. refugee chief Antonio Guterres said Sunday that drought-ridden Somalia is the "worst humanitarian disaster" in the world, after meeting with refugees who endured unspeakable hardship to reach the world's largest refugee camp in Dadaab, Kenya. (AP Photo/Rebecca Blackwell)

Associated Press
A family of Somali refugees, including an elderly woman pushed in a wheelbarrow because she was too frail to walk, waits in hopes of being bussed to another camp to receive ration cards, at a reception center in Dagahaley Camp, outside Dadaab, Kenya, Monday, July 11, 2011. U.N. refugee chief Antonio Guterres said Sunday that drought-ridden Somalia is the "worst humanitarian disaster" in the world, after meeting with refugees who endured unspeakable hardship to reach the world's largest refugee camp in Dadaab, Kenya. (AP Photo/Rebecca Blackwell)
A family of Somali refugees, including an elderly woman pushed in a wheelbarrow because she was too frail to walk, waits in hopes of being bussed to another camp to receive ration cards, at a reception center in Dagahaley Camp, outside Dadaab, Kenya, Monday, July 11, 2011. U.N. refugee chief Antonio Guterres said Sunday that drought-ridden Somalia is the "worst humanitarian disaster" in the world, after meeting with refugees who endured unspeakable hardship to reach the world's largest refugee camp in Dadaab, Kenya. (AP Photo/Rebecca Blackwell)
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