Southwest fights order to share Dallas airport gates with Delta

Southwest Airlines does not want to be forced to share its Dallas Love Field gate space with rival Delta Air Lines, Inc. and has asked a federal court to block a U.S. Department of Transportation directive that says it has to. In a filing Friday in the U.S. Circuit Court of Appeals in Washington, D.C., Southwest called the DOT's order "arbitrary and capricious, an abuse of discretion, and otherwise not in accordance with law, in excess of statutory authority, and without observance of procedure…