[SJackson]

So what are they saying, that the dead bodies should have been bluer?

It relates to the residue, of prussian blue not cyanide, in the various facilities. If you're interested, a couple of links that explains, and debunks, the deniers contensions. A Foreword to the IFFR Report, Leuchter, Rudolf, and the Iron Blues

[hellinahandcart]

Well, it's been decades since my last chemistry class, but I was able to sort of understand those articles. Thanks for not sending me to a nasty site for the info.

I only know it well as a watercolor pigment that stains like the dickens. I can see how it might form naturally if the right chemicals were sprayed around a room in a liquid suspension, and penetrated the walls or floor enough to stay there, but gas is another matter altogether (not the proper vehicle, nothing to make it stick?).