[7] The first Under Secretary for Nuclear Security and NNSA administrator appointed was Air Force General (and CIA Deputy Director) John A.

Another important asset used to test the stockpile is the National Ignition Facility (NIF) at LLNL, a laser-based inertial confinement fusion research device.

[18] NIF achieved the first scientific breakeven controlled fusion experiment on December 5, 2022, with an energy gain factor of 1.5.

Through this office and its predecessors, NNSA has successfully led the recovery efforts of nuclear materials from dozens of countries.

NNSA deploys response teams dozens of times each year, usually to check for radioactive materials.

Missions assuage safety concerns, support other agencies, and bolster law enforcement capabilities at large public events such as presidential inaugurations and the Super Bowl.

NNSA provides expertise, tools and technically informed policy recommendations to advance U.S. nuclear counterterrorism and counterproliferation objectives.

It conducts the design, development and operational support required to power all the U.S. Navy's aircraft carriers and nuclear submarines.

NNSA's Office of Defense Nuclear Security is responsible for the overall security of facilities housing nuclear weapons as well as the components and materials required to develop them -- this includes oversight of Federal Protective Forces at NNSA's labs, plants, and sites.