Preliminary tests are positive for chemical weapons, but preliminary tests are known for false positives (on the "better safe than sorry adjustment" theory). Still waiting...

Another article in the Telegraph has this interesting bit:

Ali Nimir, a former colonel in a Republican Guard artillery unit, said: "I remember seeing boxes of these kinds of armaments in our base two years ago. We were told that they were chemical weapons.

"They made a splashing sound inside if you moved them around. From what I recall they were removed from our bases and distributed to secret hiding places around the country about a year before the war. I never saw them again."