What's staining the Gateway Arch?
When a journalist from St. Louis TV station Fox2 KTVI wanted to know what was causing the stainless steel Gateway Arch to stain, one of the experts he talked to was Matt O'Keefe, a UMR metallurgy professor (and 1985 MetE grad). KTVI's Paul Schankman interviewed O'Keefe for the story, which aired Monday night (but can be viewed again, thanks to the Internet).