U.S. intelligence officials believe Iraqi President Saddam Hussein, possibly accompanied by one or both of his powerful sons, was still inside a compound in southern Baghdad early yesterday when it was struck by a barrage of U.S. bombs and cruise missiles. But intelligence analysts in Washington and operatives working in the region were not certain whether the Iraqi leader was killed or injured or escaped the attack, according to senior Bush administration officials, who worked yesterday to analyze a videotape of an appearance by Hussein broadcast on Iraqi television within hours of the pre-dawn bombardment. "The preponderance of the evidence...