The bacillus itself was not bioengineered. However, the "powder" could only have been prepared by a highly sophisticated national biowarfare infrastructure. This is true for thre reasons: the fact that the anthrax bacillus in the powder was in "spore" form, the size of the powder grains, and the fact that the powder grains had been specially treated with additives so that they would electrostatically repell each other. There are only three countries known to have the requisite technology: the USA, the old Soviet Union, and Iraq.
The "Ames" strain used in these attacks is not known to be used by Iraq. However, Iraq could have made a "special batch" using the "Ames" strain instead of the "Vollum" strain (for use by terrorists).
Yeah, the making of powders is so darn high tech. heh heh
the "powder" could only have been prepared by a highly sophisticated national biowarfare infrastructure.
I take exception with that view and contend it could be down with FAR less sophistication than is claimed that it takes ...
Some time in an appropriately 'tumbler'/drier could render the spores smooth (de-burred) and dry, ready for the application of an anti-static agent (bought from a grocery store?) ...