If an antitrust action in federal court involves an industry or business regulated by a federal administrative agency, the court may, in its discretion, employ the doctrine of primary jurisdiction and bar the plaintiff from proceeding until the matters complained of have been considered by the appropriate agency. See Midland Export, Ltd. v. Elkem Holding, Inc., 947 F. Supp. 163, 168 (E.D. Pa. 1996) (stay of proceedings pending consideration of antitrust claims by International Trade Commission would have...