ARMY CORPS OF ENGINEERS: Actions Needed to Further Improve Management of Hopper Dredging, GAO-14-290: Published: Apr 10, 2014. Publicly Released: May 12, 2014. CLEAR AIR FORCE STATION: Air Force Reviewed Costs and Benefits of Several Options before Deciding to Close the Power Plant, GAO-14-550: Published: May 12, 2014. Publicly Released: May 12, 2014. DEFENSE BUSINESS SYSTEMS: Further Refinements Needed to Guide the… Continue Reading