Extremely unlikely...{if you ask a serious question}...I am very very perplexed about this, though..How come it's the postal workers, and NOT the recipients of the mail ???????
You may be sorry you asked.
Let's say that Abdul the Terrorist takes 250 anthraxed envelopes and drops them into the mailbox.
They get picked up and dropped into a large sack. The sack gets emptied onto a table at the post office.
Fred the Postal Worker then picks each one up, and drops it into the sorting machine.
Each envelope has two things in common: 1) they all go down different routes, to different addresses, handled once by each postal worker along the way, and 2) they each are handled by Fred the Postal Worker.
Fred the Postal Worker receives 250 times the exposure of any other person involved in handling the envelopes. (I did not include the carrier who removed them from the mailbox, because he handled them as a unit, rather than shuffling individual envelopes around.)
Obviously this is A) conjecture, and B) rather simplified from whatever actual procedures are involved. I haven't been a postal worker for over 30 years. But I do believe that there are likely a few people in the handling chain who receive a much greater exposure -- by virtue of handling more than one envelope involved in a mass mailing.
The implication, of course, is that if this scenario is correct, there will be a lot of recipients of tainted envelopes.
As Drudge says, developing...
Postal Workers were exposed several DAYS BEFORE those who later received the mail. Give it time. I hear 13 of the 31 tested in Herr Daschle's office tested positive.