EPA: National security turf war flares up between IG, agency Robin Bravender, E&E reporter Published: Thursday, March 6, 2014 U.S. EPA officials and their in-house watchdogs are waging a public turf war over employee investigations. Please subscribe to Greenwire to read the full story. Username: Password: Forgot your access codes? Recover them. Not a subscriber? Sign up for a trial. Ready to subscribe? Click here.