Sending Office: Honorable Peter J. Visclosky
Sent By:

Staff Briefing on Nuclear Deterrence and the U.S. Nuclear Stockpile
Monday, April 15
10:00am – 11:00am
H-140 Capitol Building


Dear Colleague,

The Congressional Nuclear Security Working Group (CNSWG) would like to invite congressional staff to attend an unclassified briefing on
nuclear deterrence and the U.S. nuclear stockpile featuring senior officials from the
Department of Defense (DoD), Joint Staff, and the
National Nuclear Security Administration (NNSA).

A potential nuclear attack against the United States and its allies is the only existential threat to U.S. security. Deterring such an attack requires a credible nuclear posture—a credibility based on effective nuclear capabilities. After 25 years of deemphasizing
U.S. nuclear forces, most of the nation’s nuclear weapons will reach their end of service lives in the 2025-2035 timeframe.

Dr. Robert Soofer, Deputy Assistant Secretary of Defense for Nuclear and Missile Defense Policy, along with other DoD, Joint Staff, and NNSA officials, will discuss
the fundamentals of deterrence, the utility of the nuclear triad, the relationship between DoD delivery systems and NNSA warheads, and the FY20 budget request for the nuclear enterprise.

  • Dr. Robert Soofer, Deputy Assistant Secretary of Defense, Nuclear and Missile Defense Policy
  • Mr. Greg Weaver, Deputy Director for Strategic Stability, Joint Staff (J-5)
  • Mr. Dyke Weatherington, Deputy Assistant Secretary of Defense, Information & Integration Portfolio Management
  • Mr. Peter J. Fanta, Deputy Assistant Secretary of Defense, Nuclear Matters
  • Dr. Charlie Verdon, Deputy Administrator for Defense Programs, DOE/NNSA

Co-chaired by Reps. Chuck Fleischmann, Jeff Fortenberry, Bill Foster, and Ben Ray Lujan,
the CNSWG facilitates bipartisan cooperation to reduce the risk of nuclear and radiological attacks and advance solutions to the most pressing nuclear-security challenges facing the United States. In the 115th Congress, CNSWG members
supported a bipartisan amendment to the National Defense Authorization Act that directed NNSA to incentivize the replacement of cesium chloride, which could be used to make “dirty bombs” or radiological dispersal devices, from blood irradiation devices by

We hope staff are able to participate in this critical briefing on nuclear deterrence.
Please contact Travis Wheeler in the Office of Rep. Visclosky (D-IN-1) at to RSVP


Chuck Fleischmann (R-TN-3), Jeff Fortenberry (R-NE-1), Bill Foster (D-IL-11), and Ben Ray Lujan (D-NM-3)

Related Legislative Issues

Selected legislative information: Appropriations, Armed Services, Energy, Foreign Affairs, Homeland Security

icon eDC logo e-Dear Colleague version 2.0
e-Dear Colleagues are intended for internal House use only.