U.S. President Barack Obama ended his Africa trip July 2, voicing confidence in Africa's future with help from a new U.S. model for development assistance.
Obama Ends Africa Trip

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U.S. President Barack Obama heads a soccer ball at Ubungo Power Plant in Dar es Salaam, July 2, 2013. The ball called a "soccket ball" has internal electronics that allows it to generate and store electricity that can power small devices.

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U.S. First lady Michelle Obama walks with Salma Kikwete, wife of Tanzania's president, during a departure ceremony in Dar es Salaam, July 2, 2013.

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U.S. President Barack Obama and former president George W. Bush (left) attend a memorial for the victims of the 1998 U.S. embassy bombing in Dar es Salaam, July 2, 2013.

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U.S. President Barack Obama, first lady Michelle Obama, Tanzanian President Jakaya Kikwete, and Tanzanian first lady Salma Kikwete wave as they arrive at State House in Dar es Salaam, Tanzania, July 1, 2013.