Good Grief...I logged on to post that very idea..
Mine is based upon the fact that there were cities in that area 10,000 years before our Lord and Savior Jesus Christ was born.
A maniacal despot would have people looking for the entrances to the tunnels that are there. No one really knows what is under the sand in Mesopotamia-Persia-Fertile Crescent
I'm just your average citizen but I'm inclined to believe Oil for Food program hid more than we could imagine.
According to this item there were tunnels in Tuwaitha, why not Alqaqaa?
http://www.worldnetdaily.com/news/article.asp?ARTICLE_ID=31966
Feb 21, 2003 CBS "60 Minutes" does a report about tunnels and WMD.
http://www.cbsnews.com/stories/2003/02/21/60minutes/main541565.shtml
Can DOJ close 60 Minutes down and NYTimes?