For this "Back Story" segment for our nuclear chapter, we visit the site of the former Rocky Flats plutonium facility where from 1952 to 1989 plutonium triggers were produced for the hydrogen bombs in the USA nuclear arsenal. Major anti-nuclear protests were held at this site in the 1980s leading, in part, to its closure. Through decades of operation, much plutonium and other toxic chemicals were released into the local area, which is now a dedicated wild life refuge. Duration: 27:15.