a later investigation was conducted by the nuclear regulatory commission (successor to the aec) regarding an additional 198 pounds (90 kg) of uranium that was found to be missing between 1974 and 1976, after the plant had been purchased by babcock & wilcox and shapiro was no longer associated with the company. that investigation found that more than 110 pounds (50 kg) of it could be accounted for by what was called "previously unidentified and undocumented loss mechanisms", including "contamination of workers' clothes, losses from scrubber systems, material embedded in the flooring, and residual deposits in the processing equipment. hersh further quoted one of the main investigators, carl duckett, as saying "i know of nothing at all to indicate that shapiro was guilty."
United States