VILONIA, Ark. (AP) - Emergency officials on Monday began searching for survivors in the debris left by a powerful tornado that carved an 80-mile path of destruction through suburban Little Rock, killing at least 16 people. The tornado that slammed into Vilonia, about 10 miles west of the state capital, on Sunday evening grew to about half a mile wide and was among a rash of tornadoes and heavy storms that rumbled across the center and south of the country overnight.