(October 14, 2024, 9:06 AM EDT) -- YOUNGSTOWN, Ohio — Two of the third-party defendants being sued by Norfolk Southern Corp. over the train derailment in East Palestine, Ohio, that released toxic chemicals into the air and soil have filed a brief in support of a motion for summary judgment on two claims against them, arguing that “Norfolk Southern — and Norfolk Southern alone — is responsible for the derailment it caused and the consequences of its erroneous vent-and-burn decision.”...