(April 27, 2023, 11:09 AM EDT) -- PITTSBURGH — A school district in Pennsylvania has filed a lawsuit in Pennsylvania federal court seeking punitive damages against Norfolk Southern Corp., the operator of a train that derailed in East Palestine, Ohio, for contaminating local groundwater with vinyl chloride and other toxins. The school district argues that Norfolk Southern is liable “negligent, reckless, ultrahazardous, and/or intentional conduct” that led to the chemical spill....