( October 28, 2025, 4:08 PM EDT) -- CINCINNATI — The Gerald R. Ford International Airport Authority (GFIAA) has filed a brief in the Sixth Circuit U.S. Court of Appeals arguing that it should reverse a district court’s order that severed and remanded a per- and polyfluoroalkyl substances (PFAS) groundwater contamination case to Michigan state court because the district court abused its discretion....