"When you view this clip you'll get a good feel for what happens to an airplane when it hits a concrete wall. The passenger jets that hit the WTC towers and Pentagon were doing 600 mph!!!

Many of you may have seen the Michael Moore's web site that asks the question; 'If it's true that a Boeing airliner hit the Pentagon, what happened to all the parts of it? Why did we not find more pieces of it?

Where did all that mass GO?

Well, for those who question what happened to 'all the mass of that airplane', watch."

That's not my question. My question would be "How did the aircraft penetrate all that concrete at the Pentagon?" As you can see in the forwarded video, the aircraft should have vaporized on impact. Yet, whatever it was that struck the Pentagon went through E, D, and C rings.

http://www.pentagonstrike.co.uk/flash.htm#Main  (now removed ?)

Ken