Norfolk Southern Corp. has reopened one of its two rail lines at the central Ohio site where nearly three dozen train cars derailed, spilling the corn they were carrying. Spokesman Dave Pidgeon said the second line was expected to reopen Thursday at the site in Delaware, north of Columbus. Pidgeon says 33 cars that derailed Tuesday and tipped over have been moved to the side and will be inspected and eventually removed from the scene one by one. He says an environmental contractor will work to remove as much of the corn as possible. The company isn't commenting on the cause of the derailment, which is under investigation. No one was hurt. The Tennessee-bound train that derailed had a total of 87 loaded cars and three locomotives.