Iran's President Mahmoud Ahmadinejad, center, waves to Egyptian worshippers after he visits the shrine of Imam Hussein, the grandson of Islam's Prophet Mohammad, in Cairo, Egypt, Tuesday, Feb. 5, 2013. Egypt's most prominent Muslim cleric, the sheik of Al-Azhar, has warned Iranian President Mahmoud Ahmadinejad against interfering in Arab Gulf countries or trying to spread Shiite influence. Ahmadinejad, on a landmark visit to Egypt on Tuesday, received an uneasy reception from Ahmed el-Tayeb at Al-Azhar, the Sunni Muslim world's foremost Islamic institution.(AP Photo/Amr Nabil)
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