Hmmmm. Interesting. I used to work for GE Plastics, and they have a Lexan plant in Mt. Vernon, IN, just below Evansville. (as an aside, Fosgene is used in the manufacture of Lexan. I often questioned the wisdom of having large tanks of Fosgene at the middle/end of Tornado Alley...)
At any rate, I got sent there for a week, so while I was there I took a tour of the Tacoma plant in Evansville...(or as much of a 'tour' as they had...)