Can truthers get any dumber?

One of the interesting features of Skypeland is that an interested user can come into contact with a wide variety of "truthers"; that is, people who believe 911 was an "inside job". After talking to many truthers, I have realized that many truthers complain constantly about the WMD fears that partly motivated the military action in Iraq. However, when I ask them what constitutes a Weapon of Mass Destruction, I find that almost none of them can give me an accurate definition. Wow. Can they get any dumber?