Office of Nuclear Threat Science  The Office of Nuclear Threat
Science is responsible for overseeing the Nuclear
Counterterrorism Program, an NNSA program that sustains
specialized expertise and integrates and executes key activities
to advise and enable technical aspects of U.S. Government
nuclear counterterrorism and counterproliferation missions.
Nuclear Counterterrorism  The Nuclear Counterterrorism Program
operates in partnership with weapons design-, stockpile
science-, weapons surety-, and nuclear material-related
programs. The Program focuses on nuclear threat devices, which
include improvised nuclear devices, foreign weapon designs of
proliferant concern, and any device that may have fallen outside
of a foreign nuclear weapon state’s custody.    “…the single
biggest threat to U.S. security, both short term, medium term
and long term, would be the possibility of a terrorist
organization obtaining a nuclear weapon…If there was ever a
detonation in New York City, or London, or Johannesburg,  the
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