Iraq's Top Cleric Arrives in Najaf NAJAF, Iraq - Iraq's top Shiite cleric made a dramatic return to Najaf at the head of a massive convoy Thursday hoping to end three weeks of fighting in the holy city, but hours earlier a mortar barrage slammed into a mosque filled with Iraqis preparing to join his march, killing 27 people.    Along with the mortar attack, another group of thousands of marchers heading into Najaf from its sister-city Kufa came under fire from an Iraqi National Guard base...
Poll: Voters Eyeing National Security WASHINGTON - Concern about national security is dominating public attention in the final months of the presidential campaign because of continuing fears of terrorism and unhappiness about the war in Iraq, according to a poll released Wednesday.   "For the first time since the Vietnam era, national security issues are looming larger than economic issues in an election year," said Andrew Kohut, director of the Pew Research Center for the People   the Press...