The cab of an 18-wheel tractor-trailer rig hauling heavy equipment caught fire and burned up on Thursday, Jan. 22, on State Highway 36 North, but the driver and a passenger were able to get out safely.The Caldwell Volunteer Fire Department responded at 4:23 p.m. to the rig, which had stopped in the northbound shoulder near County Road 314, and found the tractor-cab portion fully engulfed...