(July 5, 2024, 9:24 AM EDT) -- CINCINNATI — The Gerald R. Ford International Airport Authority has filed a reply brief in the Sixth Circuit U.S. Court of Appeals arguing that its appeal in a lawsuit over contamination from firefighting foam that contains per- and polyfluoroalkyl substances (PFAS) belongs in a federal forum because the airport authority is under a federal contract to use the foam to deal with all fires at the airport and, therefore, federal jurisdiction applies....