They're still analyzing it. Let's not all jump the gun.
Remember all the other finds that turned out to be incorrect after further tests. I don't know what other liquid they'd put in a shell, though. Maybe super Paintball?
Notice how the media is already starting to spin out from under this (boldface mine):
But Kay, the former chief U.S. weapons inspector in Iraq, said the discovery does not provide evidence that Saddam was secretly producing weapons of mass destruction after the Gulf War, as alleged by the Bush administration to justify the war that removed him from power.
“I think all of us have known that because of the sheer volume of artillery [containing agents like sarin that were in the Iraqi arsenal prior to the Gulf War] ... that there were likely to be some of these still around Iraq,†he told MSNBC TV. "But [the discovery] doesn't speak to the issue of whether weapons of mass destruction were still being produced in Iraq in the mid-1990s."
See? All of a sudden it isn't "stockpiles" any more. It's "production facilities." In other words, if Saddam wasn't actually MAKING the weapons right before the war, it doesn't count. They've already decided that planning to make such weapons doesn't count either.
Clever, huh?