Most everything collected has a "papertrail" to show where the docs were collected. Unfortunately, that paper is in the box with the originals in Qatar. Some of that data went into the harmony database. I think a reasonable person can consider one or two docs may be fake but when it is one after another demonstrating Saddam supporting terror, using terror methods, avoiding his UN obligations, and in a state of war with the US since the Gulf War, it is impossible to conclude anything other than those documents paint a true picture. Any other conclusion is not based on the facts and enters "kooksville".
This top secret letter contain references to other top secrets letters that also deal with the same issue. It will be great if we can find these other letters and translate them so we will have more smoking guns on this subject.