An anonymous reader sends this excerpt from a blog at the Federation of American Scientists' website:
"In order to help determine the origins of microbial threats in terrorist incidents or epidemics, it would be useful to have a deep archive of various strains of lethal bacteria, the JASON defense advisory panel told the National Counterproliferation Center in a newly released 2009 report (PDF). ... 'This library would consist of strains collected worldwide by methods that preserve sample properties, and capture all relevant data (e.g. geolocation, local environmental conditions). It should include laboratory isolates, natural isolates, and DNA sequence data.'"