Top officials from the Defense Department and the intelligence community told a Senate panel that defense and deterrence are two of the highest priorities for bolstering the nation’s cybersecurity capabilities. Deputy Defense Secretary Bob Work testified on cybersecurity policy and threats before the Senate Armed Services Committee, Sept. 29, 2015. Joining him were Director of National Intelligence James R. Clapper and Navy Adm. Mike Rogers, commander of U.S. Cyber Command and director of the National Security Agency. DoD photo