The ongoing search by U.S. and allied forces for Saddam Hussein's remaining arsenal of Scud missiles is not limited to western Iraq, a hotbed of missile firings during the 1991 Gulf War, according to a senior U.S. Central Command official. No Scud firings have been reported in this conflict, but the United States and its allies remain vigilant.In 1991, Iraq launched 39 Scud missiles against Israel from its western desert -- launches that bedeviled U.S. commanders because a large amount of air and special operations assets had to be diverted to hunt them, in part to assure Israel the United...