Interesting last paragraph, left sort of hanging out there, disconnected from everything else in the story. What information are they talking about?
Hatfill's secret connections to ex-KGB rogues? Tell Babs!
Seriously, could be that the atx came from Soviet stashes, given corruptly to Saddam, and developed in Iraq, or just acquired by them in Prague. Prague seems to be a place all sorts of weapons can be procured.
Might be just tying up loose ends...might be trying to find out if Russia has the tech for the specific way the atx was concocted.