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TO GO WITH AFP STORY BY JEAN-LOUIS DE LA VAISSIERE - Egyptian grand Imam of al-Azhar, Sheikh Ahmed el-Tayeb speaks during an interview with a journalist of the Agence France Presse (AFP) on June 9, 2015 in Florence. AFP PHOTO / ALBERTO PIZZOLI (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)

TO GO WITH AFP STORY BY JEAN-LOUIS DE LA VAISSIERE - Egyptian grand Imam of al-Azhar, Sheikh Ahmed el-Tayeb speaks during an interview with a journalist of the Agence France Presse (AFP) on June 9, 2015 in Florence.  AFP PHOTO / ALBERTO PIZZOLI        (Photo credit should read ALBERTO PIZZOLI/AFP/Getty Images)