Finally, James Lewis, a leading cybersecurity expert at the Center for Strategic and International Studies, has recently said that an October 2012 speech on cybersecurity by Secretary of Defense Leon Panetta indicates that the Department of Defense is effectively taking over U.S. cyber security.

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Defense Secretary Leon Panetta said Thursday that his department is not investigating any of its troops over the reported incident in El Salvador.

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He's a suspect in the killing of Department of Corrections chief Tom Clements on March 19 and of pizza deliveryman Nathan Leon two days earlier.

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But she also broke down traditional barriers and mistrust between the state department and the Pentagon, working closely with Defence Secretary Bob Gates and his successor Leon Panetta.

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