FILE - In this Sunday, Jan. 6, 2008 file photo, a young displaced girl washes herself with soap from a metal bowl in a makeshift camp in Noigam Primary School in Kachibora village, Kenya, following post-election violence. A treaty that African nations hope will lead to the fair and humane treatment of people displaced in their own countries went into force Thursday, Dec. 6, 2012, more than three years after it was conceived by the African Union. (AP Photo/Ben Curtis, File)

Associated Press
FILE - In this Sunday, Jan. 6, 2008 file photo, a young displaced girl washes herself with soap from a metal bowl in a makeshift camp in Noigam Primary School in Kachibora village, Kenya, following post-election violence. A treaty that African nations hope will lead to the fair and humane treatment of people displaced in their own countries went into force Thursday, Dec. 6, 2012, more than three years after it was conceived by the African Union. (AP Photo/Ben Curtis, File)
FILE - In this Sunday, Jan. 6, 2008 file photo, a young displaced girl washes herself with soap from a metal bowl in a makeshift camp in Noigam Primary School in Kachibora village, Kenya, following post-election violence. A treaty that African nations hope will lead to the fair and humane treatment of people displaced in their own countries went into force Thursday, Dec. 6, 2012, more than three years after it was conceived by the African Union. (AP Photo/Ben Curtis, File)
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