How Did Aaron Alexis Get Security Clearance?

Aired: 9/17/2013 | 0:07:29 | Clip
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.