The recent false alarm at the Washington Navy Yard has insider threats on the minds of employees at military bases all over the country. The Defense Department has a long list of recommendations to protect itself better against insider threats. The Government Accountability Office issued 79 of them after the Fort Hood shooting in 2009. But DoD doesn't know how it's doing on those recommendations because individual military services aren't consistently communicating and reporting their progress. Joe Kirschbaum is the director of defense capabilities and management issues at the Government Accountability Office. He tells In Depth with Francis Rose about the force protection guidance DoD already has, and the recommendations GAO first made after the Fort Hood shooting.