Cockroaches Daubed With Yeast As WMD Sensors?

Our Man In Redmond writes "OK, yeah, it sounds weird, but it just might work. Researchers at Sandia National Laboratories have come up with the idea of attaching genetically-modified yeast to the back of a cockroach - or a cockroach-sized robot - and using the yeast to detect chemical or biological agents. The story's in today's Seattle Post-Intelligencer. They point out some other possible nifty uses for the yeast-based technology, like detecting diseases by having a patient blow on a piece of paper 'printed' with the yeast."