New Security Concerns After Navy Yard Rampage

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New Security Concerns After Navy Yard Rampage

New Security Concerns After Navy Yard Rampage
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New Security Concerns After Navy Yard Rampage

by Associated Press Videos 1:38 mins

The contractor who killed 12 people at the Washington Navy Yard had been hearing voices and was undergoing treatment weeks before the rampage. The shooting raises new questions about security clearances and vetting government contractors. (Sept. 17)

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