Mealey's (February 10, 2023, 1:41 PM EST) -- BENTON, Ill. — Customers who have sued McDonald’s Corp. seeking damages for exposure to per- and polyfluoroalkyl substances (PFAS) in food packaging filed a brief in Illinois federal court contending that the restaurant’s conduct exposed them to an unexpected safety risk and arguing that the fast-food chain has a duty to disclose in the context of fraudulent omission under Illinois law....