...linking the anthrax strain to US Army biological weapons manufacturing in Utah.
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US anthrax attacks linked to army biological weapons plant
By Patrick Martin
28 December 2001
The anthrax spores enclosed in envelopes mailed to two leading Senate Democrats in October are biologically identical to bacteria secretly manufactured at a US germ warfare facility during the last decade, according to press reports and an analysis by a leading microbiologist.
The army biological and chemical warfare unit at the Dugway Proving Ground, about 80 miles southwest of Salt Lake City, Utah, may well be the source of the weapons-grade anthrax sent to Senators Tom Daschle and Patrick Leahy. Scientists at Dugway grew and processed spores deriving from the Ames strain—the strain that appeared in all the letters sent to media outlets and Congress.
The spores had been carefully milled to produce the size most effective in spreading the deadly bacteria, between one and three microns.
The existence of the secret army program was first revealed by the Baltimore Sun in an article published December 12. Until then, US officials, including those investigating the anthrax attacks, had maintained that the American military stopped producing germ warfare materials in the late 1960s, before the signing of an international treaty banning the development of such weapons.
Pentagon spokesmen now claim that the development of weapons-grade anthrax was legal under the treaty because the production of small quantities is permitted for “peaceful and protective” purposes, i.e., to prepare countermeasures to a germ warfare attack. The United States is the only country that is known to have produced weapons-grade anthrax in the past 25 years.
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http://www.wsws.org/articles/2001/dec2001/anth-d28.shtml