It is pretty well clear
that early in the investigation
the FBI ruled out a foreign origin for the anthrax.
Is there a reason for this that they are not telling us?
Some people make a case that they are obstinate fools, based on examples like the Atlanta Olympics bombing, blaming Richard Jewell.
My take is that this is wrong, that the FBI do have a very good reason for the domestic focus in the anthrax case.
Purely speculatively now, what sort of evidence could they have?
It is possible that the mailers themselves revealed enough of the truth for understanding, and that the government are being black-mailed into inaction by the mailers.
What other evidence could they have that would be so persuasive that they would virtually abandon any foreign theory, yet would not enable them to procede with a prosecution?