File photo. The front of the entrance to the Y-12 National Security Complex in Oak Ridge. (ADAM BRIMER/NEWS SENTINEL)
Photo by The Knoxville News Sentinel /Chattanooga Times Free Press .
published Thursday, August 1st, 2013
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OAK RIDGE — The U.S. Department of Energy has notified the contractor at the Y-12 nuclear weapons plant in Oak Ridge that it plans to investigate a possible security breach and release of classified information.