Oversight panel: Nuclear lab workers violated safety rules

SANTA FE, N.M. (AP) — A national laboratory’s workers producing a shell for a triggering device for nuclear weapons violated safety rules in August by storing too much material at one location in a facility for plutonium, a highly radioactive material, a federal oversight panel reported.
The Defense Nuclear Facilities Safety Board memorandum called the Aug. 18 incident at the Los Alamos National Laboratory a “criticality safety event” and said workers there discovered the