Office buildings are just about the juiciest target there is for a chemical or biological attack: windows that don't open, self-contained airflow, and lots of people in an enclosed space. That's why Darpa is developing its "Immune Building" program -- an effort to use a structure's heating, ventilation, and AC systems to get rid of toxic agents.I take a quick look at the mostly classified program in a postage-stamp-sized Wired magazine article, out now. And here is a presentation on the project, from the DarpaTech 2002 conference.
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