Defense Secretary Hagel Speaks on New Security Reviews in Washington

Defense Secretary Chuck Hagel (L) and Gen. Martin Dempsey, Chairman of the Joint Chief's of staff, hold a press briefing at the Pentagon in Arlington, Virginia on September 18, 2013. Hagel is ordering reviews of security measures of U.S defense facilities worldwide and reviews of security clearance procedures. These reviews come in the wake of Monday's Navy Yard shooting that left 13 people dead including gunman Aaron Alexis, who was a Defense Department contractor with a security clearance. UPI/Kevin Dietsch