Te decision to mail antrax from Pakistan is an in your face means of showing that the anthrax is a terror weapon and that the anthrax letters in the USA are not the work of some right wing group and or a Ted Kazinsky style unibomber. Of course the FBI will disclaim any such conclusion.
Stay well - stay safe - Stay armed - Yorktown
Maybe the Wiccans flew to Pakistan. This home grown terrorist theory never worked for me. I don't know if the FBI propagandized this theory as a misdirection or if they really thought it was the Wiccans :-)