An earlier post said that the terrorists tried and failed to get a more efficient means of delivery.
A month ago when it was revealed that M. Atta tried to the point of desparation of obtaining a crop duster
tipped me off to the fact that he had something locally (Florida) that he wanted to distrubute.
The orders came to execute for Sept. 11 and he knew he wasn't ready for the Anthrax execution phase.
He went to an improvised Plan B having his remaining cells in Florida execute mailings to media outlets.
It was hit or miss but followed the principal of "use it or lose it".
at first i thought it was a prank by teenage boys
but only a foreigner would use the post office...
who knows when or if those "powder letters" will ever be delivered;
or even to the right people...