FILE - In this May 22, 2014 file photo, shiite pilgrims pass a poster of Shiite spiritual leader Grand Ayatollah Ali al-Sistani, as they head to the shrine of Imam Moussa al-Kadhim in Baghdad, Iraq. Iraq's most revered Shiite cleric whose opinion is often sought during troubled times will undergo surgery for a fractured bone, according to two officials and a statement from his office on Thursday. (AP Photo/Khalid Mohammed, File)
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