Documentary.
Originally broadcast on the PBS Network in 2019 as an episode of Nova.
Running time indicated on container: approximately 60 minutes; actual running time: 54 minutes.
Narrator, Keith David.
DVD; NTSC, region 1; widescreen presentation; stereo.
DVD ; widescreen ; stereo ; NTSC 1.
English dialogue; optional English subtitles for the deaf and hard-of-hearing (SDH).
English ; Subtitles for the deaf and hard of hearing.
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