Sunni insurgents backing Abu Mussib Al Zarqawi have expressed alarm at the prospect of a defeat by the U.S.-led coalition in Iraq. An audio tape said to be from Al Zarqawi charged Muslim clerics with letting down the insurgency "because of your silence." On Wednesday, Al Zarqawi, with a $25 million bounty on his head, was the target of a major manhunt in the Sunni Triangle, Middle East Newsline reported. Iraqi military sources said Al Zarqawi was said to have been seen in an area south of Fallujah. Islamic sources said that for the first time in more than a...