Places: Rocky Flats nuclear weapons plant, Mayak nuclear facility in Russia (Ural Mountains) -- Subjects: Health Physics at Rocky Flats, lung counters for detecting plutonium in workers' lungs, radiation cytogenetic studies (chromosome studies of workers), Environmental Research Department at Rocky Flats, tritium release at Rocky Flats, 1969 fire, cause, progression, attempts to protect workers and plant from radioactive contamination, use of water, danger of criticality, conditions within plant during the fire, studies of effects of plutonium on workers, plutonium registry, autopsy studies, medical surveillance of workers (at Rocky Flats, Hanford, Savannah River, Oak Ridge, Los Alamos, Livermore), beryllium, Chronic Beryllium Disease, FBI raid in 1989, Dow Chemical Company, safety program, closeness of employees, informal meetings with activists, development of Health Advisory Panel, epidemiological studies, incidence of brain tumors at Rocky Flats, Denver metro area, feelings of responsibility for the health of the workers.