Obviously, they weren't cooperating. But as we now know, they didn't have WMDs. Yes, that seems inconsistent -- Why did Saddam make like he had something to hide? Maybe to keep his standing in the Arab world, make em think he was packin' nukes.
Gee, if Saddam didn't have WMD then why were trucks pulling stuff out the back door of buildings when UN inspectors showed up at the front door?
If Saddam didn't have WMD why did he play games with the UN inspectors?
If Saddam didn't have WMD he certainly miscalculated. He could have just told the UN that the inspectors could come back, have full access, and avoided a war.
What a mistake he made.