(March 21, 2023, 2:27 PM EDT) -- COLUMBUS, Ohio — A shareholder sued Norfolk Southern Corp. and current and former senior executives in Ohio federal court, alleging that the defendants issued false and misleading statements regarding Norfolk Southern’s implementation of a cost-cutting strategy, known as precision scheduling railroading (PSR), which led to the train derailment and subsequent spilling of hazardous materials in East Palestine, Ohio....