???? Bush went to great trouble to launch the invasion of Iraq. His govt was badly embarrassed by the failure to find justifications, and put out many false tales, like the Niger uranium deal, and the weird "I was raped by Uday Hussein" torture stories of Jumana Hanna.
Surely, if they could have found real evidence, such as this torture centre, they would have displayed it, not covered it up.
As the article says, it was gone by 2003 when the place was raided. Plenty of time to clean house, at least on that scare; Bush gave multiple warnings over the airwaves instead of adhering to some of the most basic principles of war, among them being secrecy and diversion.
Chemical weapons, we only have to ask Assad.