UPF Lawsuit

FOR IMMEDIATE RELEASE, August 10, 2026

Contact:  Jay Coghlan, Nuclear Watch New Mexico, 505.989.7342, c. 505.470.3154 | Email
Sophia Stroud, Nuclear Watch New Mexico, 505.231.9736 | Email

Santa Fe, NM – In response to Freedom of Information Act requests, the Department of Energy’s semi-autonomous National Nuclear Security Administration (NNSA) has released a new study entitled Plutonium Aging: Executive Summary (Unclassified) by long-time scientific advisors to the U.S. government called the JASONs. The key “High-Level Finding” of this new report is:

“The Pu [plutonium] in the stockpile appears to be aging slowly. The degradation issues that have been observed do not call into question present weapons performance.”

Plutonium “pits” are the all-important radioactive cores or “triggers” of nuclear weapons. The NNSA has repeatedly claimed that potential aging effects drive the need for the aggressive expansion of plutonium pit production, which is the agency’s most expensive and complex program ever. The Pentagon has stated that expanded pit production is one of the most critical issues in its $2 trillion “modernization” program to keep nuclear weapons forever.

However, the independent Government Accountability Office (GAO) has repeatedly stated that the NNSA has no credible costs estimates and no “Integrated Master Schedule” for simultaneous production at the Los Alamos National Laboratory (LANL) in northern New Mexico and the Savannah River Site (SRS) in South Carolina. In fact, DOE and NNSA have been on the GAO’s “High Risk List” for project mismanagement and waste of taxpayers’ dollars since 1991. At more than $30 billion, the plutonium pit plant at SRS is on track to become the most expensive building in U.S. history. A comparable amount will be spent at LANL on facility upgrades and related projects, for which the NNSA fails to keep total aggregated costs.

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