On the Assertion that Iron Cyanide Compounds Aren't a Reliable Indicator of the Presence of Cyanide

It's an absurdity. It's kind of like saying that natural gas, coal, and wood aren't a reliable indicator of the presence of carbon. That, and the fact that iron cyanides are amongst the most durable and exactly the type of cyanide that one would expect to see after 50 years. Germar Rudolf was right, people.