It's significant not only that the shells were found, but that they were in the hands of pro Sadaam insurgents who were able to access them somehow. Apparently, the shells don't look all that different from conventyional shells, so whether the insurgents knew wjhat they had or not, they came from some Iraqi storage that included WMDs.
We can be sure that Saddam didn't create only one each of these types of weapon, so there undoubtedly are or were dozens, hundreds, or perhaps thousands more of these - maybe in one of the several thousand weapons sites that still haven't been inventoried, maybe buried in the sand, maybe in mosques, maybe in Syria. But we need to find more to change perceptions on the WMD issue. David Kaye was way off base saying there aren't or wren't any WMD's in Iraq; it's way too soon to say that. My guess is that we'll find more - probably a few here and there, but maybe never the huge stockpile that Bush-haters will demand before they will cede the point.
Russert just said on Hannity (when asked what he thought of the discovery)...well, the French, Russians, (and I missed who else) all that he had them. What a jerk, that's been true all along. I guess the spin is that the world knew if we find them and Bush lied if we don't find them.
This is not a significant find. It would take the uncovering of a substantial amount of WMDs before I begin to celebrate. 1 shell does not vindicate President Bush - unfortunately it only serves to highlight a huge failure to produce that which we were certain Saddam had. Before anyone starts flaming me - I am a staunch supporter of Bush and will vote for him in the next election. But I personally cannot overlook the reasons we went to war and the importance of the existence of WMD to that cause. While the outcome has been fantastic - I still think that that the absence of significant stockpiles of WMD is a black eye on the President to say the least. And this lone shell, even if it has Sarin in it, highlights that liability.