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DAR ES SALAAM, TANZANIA - FEBRUARY 17: US President George W. Bush (L) and Tanzanian President Jakaya Kikwete during a social dinner on February 17, 2008 at the State House in Dar es Salaam. Bush and Kikwete signed a five-year, 698-million-dollar US aid package for the east African country. (Photo by Charles Ommanney/Getty Images)

DAR ES SALAAM, TANZANIA - FEBRUARY 17: US President George W. Bush (L) and Tanzanian President Jakaya Kikwete during a social dinner on February 17, 2008 at the State House in Dar es Salaam. Bush and Kikwete signed a five-year, 698-million-dollar US aid package for the east African country.   (Photo by Charles Ommanney/Getty Images)