Nuclear Arms, Terrorism, Cyberespionage Challenge US Security in 2016

February 10, 2016 12:28 AM
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U.S. intelligence officials say nuclear arms programs, terrorism and cyber espionage are among the top national security challenges facing the United States this year. U.S. national intelligence chief James Clapper and the head of the Defense Intelligence Agency, Vincent Stewart, told the Senate Armed Services Committee Tuesday the array of challenges and crises that confront the United States is more diverse than ever. Zlatica Hoke reports.