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McCain: What do you do in the case of a cyber attack?

10:05 AM ET Thu, 5 Jan 2017

At the Senate Armed Services Committee hearing on foreign cyber threats to the United States, James Clapper, Director of National Intelligence; Admiral Michael Rogers, National Security Agency director; and Marcel Lettre II, undersecretary of Defense, answer questions on the impact of hacking in the U.S. election and what protocol suggests should be done.