Even more fun fact about Zyklon B and the color blue: if you were asphyxiated/poisoned to death that way (an incredibly inefficient chemical for such an efficient people to chose for said purpose), their bodies would have also turned bright blue.

Of course, the original myth makers didn't know this and there is not one single detail of stacks of blue bodies being taken from the gas chambers. No mention of blue corpses? Wouldn't that kind of image really stick in your mind?

Anyway...