An Iranian woman walks past graffiti in a southwestern street of Tehran on June 29, 2015. Despite agreeing the outlines of a nuclear agreement on April 2, the final talks between Iran and six powers led by the United States on turning it into a binding accord have hit difficulties on reaching a deal which would lift sanctions, paving the way for foreign investment to flow back, in exchange for curbs on Iran's nuclear activities. AFP PHOTO/BEHROUZ MEHRI (Photo credit should read BEHROUZ MEHRI/AFP/Getty Images)
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AFP BEHROUZ MEHRI