Shiite Pilgrims Visit Imam Hussein Shrine in Karbala, Iraq

KARBALA, IRAQ - JUNE 20: Shiite Muslim pilgrims take part in Friday prayers in the tiled shrine and gilt inner sanctum of Imam Hussein, a grandson of Prophet Mohamed and Shia Islam's third and most revered imam, on June 20, 2014 in Karbala, Iraq. Iraq's Grand Ayatollah Ali Sistani has made a call to arms for all able-bodied Shiites to fight Al Qaeda-inspired Sunni jihadists of the Islamic State in Iraq and the Levant (ISIS), who have seized control of western and central sectors of Iraq in a lightning advance, and vow to attack Karbala and another shrine city Najaf. (Photo by Scott Peterson/Getty Images)