WASHINGTON (AP) - The Army is investigating up to 19 members of a supply platoon in Iraq who refused to go on a convoy mission, the military said Friday. Relatives of the soldiers said the troops considered the mission too dangerous, in part because their vehicles were in such poor shape. Some of the troops' concerns were being addressed, military officials said. But a coalition spokesman in Baghdad noted that "a small number of the soldiers involved chose to express their concerns in an inappropriate manner causing a temporary breakdown in discipline." The reservists are from a fuel platoon that...