That's the name of a documentary which aired on the U.S. program Frontline. It was made by a journalist named Dave Iverson who left his job at a public radio station and returned to his home town after he developed PD. Some of the science may be dated as it aired in 2009 but still well worth seeing. I watched it last night on my laptop. I don't know if it is accessible from the UK or not -- or how -- but I can find out. Here's the link: pbs.org/wgbh/frontline/film...
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