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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![A cameraman films U.S. Navy SEALs during an episode of the Fox network television series "24" at Camarillo Airport in 2008.](http://images04.military.com/sites/default/files/styles/thumbnail_large/public/2024-04/mil-filming-seals-in-series-24-1800.jpg?itok=WZFSEAJB "A cameraman films U.S. Navy SEALs during an episode of the Fox network television series "24" at Camarillo Airport in 2008. (U.S. Navy)")
