IRAQ-SHIITE-RELIGION-SECURITY

Shiite Muslim pilgrims walk on a highway in Baghdad's Dora district on November 26, 2015 on their way to the holy city of Karbala in central Iraq, where they take part in the Arbaeen religious festival which marks the 40th day after Ashura which commemorates the seventh century killing of Prophet Mohammed's grandson, Imam Hussein. Iraq has increased security around Shiite areas aiming at reducing the risk of suicide bomb attacks by the Islamic State (IS), an extremist Sunni group which controls parts of Iraq and considers Shiites heretics. AFP PHOTO / AHMAD AL-RUBAYE / AFP / AHMAD AL-RUBAYE (Photo credit should read AHMAD AL-RUBAYE/AFP via Getty Images)