text: Mortar Attack Kills 27 at Kufa Mosque KUFA, Iraq - A mortar barrage slammed into a mosque filled Iraqis preparing to march on the embattled city of Najaf, killing 27 people and wounding 63 here Thursday hours before the nation's top Shiite cleric was expected to arrive in area with a peace initiative.    The attack on the main mosque in Kufa - just a few miles from Najaf - dampened renewed hopes for a rapid resolution to the three-week crisis in Najaf...