QAYYARAH, Iraq (AP) - Sheik Horn floats around the room in white robe and headdress, exchanging pleasantries with dozens of village leaders. But he's the only sheik with blonde streaks in his mustache - and the only one who attended country music star Toby Keith's recent concert in Baghdad with fellow U.S. soldiers. Officially, he's Army Staff Sgt. Dale L. Horn, but to residents of the 37 villages and towns that he patrols he's known as the American sheik. Sheiks, or village elders, are known as the real power in rural Iraq. And the 5-foot-6-inch Floridian's ascension to the esteemed...