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PBS News Hour
How Did Aaron Alexis Get Security Clearance?
Revelations about the mental health of the gunman who killed 12 at the Navy Yard raises questions about how someone like Aaron Alexis is allowed access to a U.S. military base. Judy Woodruff discusses screening with Dr. E. Fuller Torrey of the Treatment Advocacy Center and Dr. Elspeth Cameron Ritchie, a former Army psychiatrist.
