Or, as Occams Razor would insist, they simply were crafty without being necessarily technically brilliant.
I see your point, but in my post I had chosen my words carefully: "...what if overwhelming evidence leads us to believe that Al Qaeda ARE a bunch of doofuses?"
The _kinds_ of stuff that has come out about people who _apparently_ were Al Qaeda could be called, if I were a hippy, mind blowing. These are people who went to flight schools and asked if they could learn just how to fly a plane, not how to take off and land. I'm sorry, but such people are not crafty. Such people are doofuses.
I'm not saying such observations prove they didn't do 911. I'm just saying it become easier and easier for someone so inclined to make a persuasive case that Al Qaeda didn't do it, or didn't act alone.
Mark W.