Here is the link to the CDC's "Facts about Phosgene" page. Many of the symptoms "Brew Dude" had do not seem to be a result of his exposure to Phosgene, so I question his assertions about them. Nonetheless, we need to remember to be cautious!
CDC Page:
http://www.bt.cdc.gov/agent/phosgene/basics/facts.asp
Shiny Side Up!
Bill