An Iraqi policeman runs his metal detector over a coffin of a victim of sectarian violence prior to a funeral in the Shiite holy city of Najaf, 160 kilometers (100 miles) south of Baghdad, Iraq, Sunday, Feb. 18, 2007. Nearly all Shiite Muslims in Iraq request to be buried in Wadi al-Salaam, or The Valley of Peace, one of the largest cemeteries in the world, located in Najaf.