◆ SpookStack

To: WMD Directorate From: Washington Field Re: 279A-WF-222936-USAMRIID, 11/06/2006 laboratories as well as the FBI Laboratory, has led investigators to conclude that the Bacilius anthracis used in the anthrax letter attacks is directly related to Reference Material Receipt- 1029 (RMR-1029). RMR-1029 was a large Bacillus anthracis Ames strain spore batch produced to conduct numerous anthrax aerosol challenges. RMR-1029 was produced in 1997 by scientists_in the Bacteriology Division at USAMRIID and was stored in the containment suite within Building [Jot USAMRIID. Investigation has determined that research strains of Bacillus subtilis, that have not yet been compared to the Bacillus subtilis isolated from the ost and Tom Brokaw anthrax powders, are located in thel Joontalament suites within Buildingl_] USAMRIID. In April of 2005, a notebook labeled "Cultures Frozen in [ bcuce Ivins" was provided to the FBI. The book is an inventory of the organisms in the storage boxes within a -70°C freezer located in the hallway of th suite. Many Bacillus species, to include Bacillus subtilis, are listed within the book. All of the samples of non-anthracis Bacillus located within these storage boxes will be seized. These samples will then be packaged and transported to the National Bioforensic Analysis Center (NBFAC) where they will be analyzed. Operation Execution