Biodefense: DHS Exploring New Methods to Replace BioWatch and Could Benefit from Additional Guidance, Report to Congressional Requesters [open pdf - 3MB]
From the Highlights: "Early detection of a biological attack can help reduce illness and loss of life, but DHS has faced challenges in acquiring biodetection capabilities to replace BioWatch, the current system used to detect aerosolized biological attacks. According to DHS, it is exploring the use of a new anomaly detection capability that, if developed successfully, could reduce the time to detection. GAO [Government Accountability Office] was asked to examine the BD21 [Biological Detection for the 21st Century] acquisition and assess technical maturity. This report (1) describes BD21 and the extent to which the program has followed DHS's acquisition policy, and (2) examines potential technical challenges to successful BD21 development, and actions to mitigate acquisition risks."
Government Accountability Office: http://www.gao.gov/