.... GERECHT: We actually know from inspectors that, in fact, there were large quantities of WMD that Saddam Hussein had, in fact, built. Now, what happened was that there appears to have been some change in the tactic and approach by Saddam Hussein during the 1990s. I suggest to you, the only way you really would have been able to detect that would have been multiple sources, multiple volunteers inside of those organizations that could have verified it, and that would have been very, very difficult, and the agency didn't have that type of penetration before. BLITZER: Melissa, you worked...