If you read the ISG's Report Summary, there's a lot of assumptions that S/H didn't do the logical thing with his C/B weapons program (like make C/B weapons).
I agree with tomnbeverly- they're in the Baaka Valley and in the hands of al Queda.
Remember the foiled attack on Amman? Who else in that region has the ability to produce those C/B weapons? Maybe the Israelis gave it to al-Q?
Well, I just got into town about an hour ago
Took a look around, see which way the wind blow
-John Kerry
Very good question.
According to the perp the Jordanians captured:
Jordanian authorities said the attack would have mixed a combination of 71 lethal chemicals, which they said has never been done before, including blistering agents to cause third-degree burns, nerve gas and choking agents.More info here: http://www.cnn.com/2004/WORLD/meast/04/26/jordan.terror/