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Afghan President Ashraf Ghani addresses a joint session of Congress at the US Capitol in Washington, DC, on March 25, 2015. AFP PHOTO/NICHOLAS KAMM (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)

Afghan President Ashraf Ghani addresses a joint session of Congress at the US Capitol in Washington, DC, on March 25, 2015.   AFP PHOTO/NICHOLAS KAMM        (Photo credit should read NICHOLAS KAMM/AFP/Getty Images)