BAGHDAD, Iraq - U.S. forces on Sunday arrested an Iraqi exile who had proclaimed himself Baghdad's mayor, saying he was exerting authority he didn't have. Mohammed Mohsen al-Zubaidi was arrested at 5 p.m. in downtown Baghdad "for his inability to support the coalition military authority and for exercising authority which was not his," said U.S. military spokesman Capt. David Connolly, speaking in Baghdad. Soldiers arrested seven others found with al-Zubaidi, Connolly said without identifying them. Al-Zubaidi, who has cast himself as a volunteer to help Iraq (news - web sites) get back on its feet, never discouraged widespread rumors that...