Sorry, I was being slightly sarcastic, as is my wont.
I was responding to your reasons against believing
that Iraq could have produced such a high grade anthrax.
I agree with you totally.
But as I go through the list of possible sources,
I can think of strong reasons why each of the others, also
could not be the source.
(No point listing all these reasons.)
So I guess we still are left with Iraq as chief suspect,
with Pakistan second on the list.
But, as I indicated, if the anthrax came from (ISI?) in Pakistan,
you would think they also would have provided it
to their comrades in arms next door in Afghanistan.
I hope this is clear now.
What are the arguments against Iran? Iran has been heavily involved in supporting Palestinian terrorism. The Iranians have made very aggressive statements as of late. And the messages in the anthrax letters reads just like a typical chant in a demonstration in Iran.
And what about China? What is known about the Chinese biological weapons program? China stands to benefit more than anyone else from a protracted war between the West and the Muslim world.