Who do you trust to get it right? The inspector is Hans Blix, in charge of various Iraq inspections. The spymaster is Mihai Pacepa, who was in charge of writing some of the standard WMD hiding plans for Soviet bloc countries (of which Iraq, doctrinally, has remained).
The real surprise for me has been that nobody seems to have been asking the IGC whether or not there has been evidence uncovered of a hiding plan consistent with Pacepa's claim that such plans were standard operating procedure. Or, if those questions have been asked by the press, nobody's reporting the answers.