Defense Secretary Carter on ISIS, Syria, and threats from cyber-terrorism and climate change

Defense Secretary Ashton Carter
U.S. Secretary of Defense Ashton Carter.
Alex Wong | Getty Images

Defense Secretary Ashton Carter speaks about key national security issues including ISIS and Syria, Iraq, and the threats from cyber-terrorism and climate change. The Defense Secretary spoke Tuesday, March 1 at the Commonwealth Club of California. Club president and CEO Gloria Duffy is the moderator. She's a former deputy assistant secretary of Defense and a nuclear and chemical weapons negotiator with the Soviet Union.

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