Air Force Gen. Paul J. Selva, vice chairman of the Joint Chiefs of Staff, speaks during a National Defense University Center for the Study of Weapons of Mass Destruction conference, hosted on Fort Lesley J. McNair in Washington, Jan. 19, 2016. (DoD photo by Army Staff Sgt. Sean K. Harp)

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Keywords: ., conference, destruction, global, mass, ndu, paul, selva, threats, vcjcs, weapons, wmd