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To: Washington ®.. From: Washington A, Re: 279A-WF-222936, 05/21/2004 ~1T OS a preparations after each challenge. These_aliquots were kept in laboratory refrigerator in Building R . However, prior to the anthrax-laced letter mailings, id not keep a record of these samples and so could not provide any documentation regarding their exact amount or location. Other individuals, not listed on Ivins' Reference Material Receipt Record, also appeared to hav Dugway Ba. During_an interview of indicated that "fo | has also examined samples of B. ugway Proving Ground and UNSCOM inspections." was then interviewed telephonically on May 10, 2004, akd dra tiot deny the possibility thatL_] had examined samples. However had no j of having analyzed any ific samples from Dugway. [ould have to go back to lab notebooks to check, but wou need additional information such as more details about the samples or a more specific context in which to look. [ ____]has received too many simulant samples to remember the origin of each sample. Moreover, a S not always provided_with the origin of th les receives. However, because works in the section at USAMRITI only samples eceives:o indicated in a December 14, 2001 interview at a one some assay work with killed Ames spores from Dugway. However, in a May 18, 2004 interview, Crop fissities that this work was done after September 11, 2001; included the killed spores as control samples in a test kit used for post-September 11 (but pre-anthrax laced letter mailings) testing done as a precaution at different sites such as the Pentagon. received these killed spores from , but had no knowledge as to where these spores came from, ‘or whether they were killed before or after their entry into USAMRIID. was listed after October 2001 on Ivins'! Reference Materi Receipt Record as having received one milliliter of Ba on November 14, 2001. When interviewed,[___] corroborated thatL__] has used some of the Dugway Ames_spores which[__] obtained from Ivins. It-is unclear_whether received any Dugway Ames before this time. However, has not mailed Ba outside USAMRIID for