Tagged: Leon Panetta

Secretary of Defense Leon Panetta delivered a policy speech that he said was a "clarion call" for Americans to take cyber security seriously. Attacks that can cripple a country, he said, are no longer theoretical.

Defense Secretary Leon Panetta told business leaders the Pentagon is developing capabilities to ward off attacks on the nation's infrastructure. He says foreign actors have already probed key systems that could cause damage and even death — and the Pentagon has a key role to play in stopping such efforts.

Defense Secretary Leon Panetta is expected to announce during a meeting of NATO defense leaders in Brussels Wednesday that Marine Gen. Joseph Dunford will be nominated to succeed Gen. John Allen as the top commander in Afghanistan, according to a defense official familiar with the decision.