The Pentagon’s Defense Advanced Research Projects Agency (DARPA) has issued a Broad Agency Announcement for the Panoptic Analysis of Chemical Traces (PACT) program. The PACT program will develop technology capable of analyzing complex gas mixtures without reliance on preconceived libraries of anticipated analytes. PACT will provide automated, high- throughput analysis of atmospheric sampling efforts aimed at producing exhaustive chemical maps of urban and military environments. The agency is seeking research proposals in the area of high-throughput chemical analysis of trace gases. Sol. No. DARPA-BAA-08-62. Respond by Oct. 20. Contact: Program Coordinator, [email protected].