Some Iraqi Sunni Muslim insurgents said the announcement of his injury earlier this week revealed a power struggle within his group. Zarqawi had suffered a gun wound, insurgents said in interviews and internet statements. A leader within the group, Abu Jalal Iraqi, said: "He is wounded in his right lung, in which the bullets crossed and remained in his back … [and] is being given respiration." This heightened suspicion that groundwork was being laid for the announcement of his replacement or death. Various insurgent sources have said he was wounded in an ambush by US marines and Iraqi forces last...