BAGHDAD, Iraq (AP) -- The U.S. Army Reserve soldiers who refused orders to drive a dangerous route were members of one of a few supply units whose trucks are still unarmored, their commanding general said Sunday. The soldiers, now under investigation, had previously focused on local missions in safer parts of southern Iraq and had never driven a convoy north along the attack-prone roads passing through Baghdad. "Not all of their trucks are completely armored. In their case, they haven't had the chance to get armored," said Brig. Gen. James E. Chambers, commanding general of 13th Corps Support Command, which...