It is blatently anti-semitic and totally stretches the bounds of believability (note that Arabs are Semites).

It goes something like this:

There is a massive Arab/Semite conspiracy to destabilize the West.

There is a gigantic network of Arab/Semite spies and agents throughout the world, at the beck and call of a BIG Semite called bin Laden.

Controlling this gigantic network of Semite spies and agents from a cave in Afghanistan (while all the time under observation by the CIA and friends (who have produced tapes of this master plotter conversing with his mother)) bin Laden manages to destroy the two largest commercial buildings in the USA and put a significant dent in the Pentagon.

Not only this, but he is cunningly able to stand-down the United States Air Force, thus permitting this immense destruction to occur without airforce interference, which would have otherwise quickly laid waste to his plans. Such an achiever.

And not only this, but in order to sow confusion among his enemies, he publicly, and repeatedly, denies any involvement whatsoever in this amazing achievement. Such a man.

Boggles the mind, doesn't it.

Only the maddest -- probably insane -- conspiracy theorists believe this dribble.

Seriously guys, some people actually believe this crap.