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US Dept. of Homeland Security

(Homeland Security secretary Janet Napolitano, at lectern, addresses a conference of the American Society for Industrial Security at the Pa. Convention Center.  Credit: Pat Loeb)

In Philadelphia, Homeland Security Chief Delivers Warning About Cyber Threats

Cyber attacks are potentially the biggest risk to security the country faces, according to Homeland Security secretary Janet Napolitano.

09/10/2012

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