Official US Department of Energy records show a discrepancy of weapons plutonium at Los Alamos National Laboratory of about 300 kilograms – enough to make 60 nuclear bombs. The potential environmental, health and security consequences are grave. The documents below chronicle IEER’s efforts to get DOE and LANL to account for the discrepancy.

Technical Reports

Dangerous Discrepencies: Missing Plutonium in the U.S. Nuclear Weapons Complex, by Arjun Makhijani, Ph.D and Brice Smith, Ph.D. Originally published November 29, 2005, reissued with corrections April 21, 2006.

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Other Background Documents

1996 DOE memorandum identifying LANL’s plutonium accounting issue

Also see IEER’s Report: Containing the Cold War Mess