Just read this article on another car forum. Wow, pretty scary, just thought I would pass it on. I know a few of us here weld...

http://www.brewracingframes.com/id75.htm

And although the article makes no mention of it, Phosgene gas was one of the first offensive chemical weapons used in combat (WWI) by a modern mechanized army...pretty crazy, now I know how to make it.

Bart