[GLDNGUN]

Pretty logical, except I don't understand why they would not put the Anthrax in every package. I mean, they want to kill as many Americans as they can and frighten the rest of. If they can put Anthrax in some, why not all? That would create even more fear and terror.

[francisandbeans]

My guess would be in hopes of copycats. That and they want CDC chasing thier tail, and for the public to lose faith in thier ability to handle it. Anthrax is tough stuff to handle, my guess is that the anthrax is coming from one or two cell members and other members are mailing out the dummy packs to keep CDC on wild goose chases.