New Sensor Detects Gaseous Chemical Weapon Surrogates In 45 Seconds / Medical News Today, 23 March 2007
http://digbig.com/4sbsd
"Using lasers and tuning forks, researchers at Pacific Northwest National Laboratory have developed a chemical weapon agent sensing technique that promises to meet or exceed current and emerging defense and homeland security chemical detection requirements. The technique, called Quartz Laser Photo-Acoustic Sensing, or "QPAS," is now ready for prototyping and field testing."