Tracking down the source of the anthrax letters seems to be very difficult. "Seems" is the operative word. Actually, it looks like we've had one of the mailers -- perhaps the mailer -- in custody for about six weeks. His name is Allah Rakah, and he was arrested by the FBI on November 2.
Unfortunately, he was almost certainly just a mule. If the "real thing" is out there, the chances are we have no idea where the would-be human ICBM(s) are, and there is practically nothing we can do about it.
So, you are saying that we have not yet exposed the source of the Anthrax because we want to not critize the Pakistani Government and their intelligence community's role in the support of Al Queada, until we have Bin Laden and crew taken care of??? I wonder if the leader of Pakistan will clean house after he is informed of the source of the Anthrax and what was done at the India Parlament?