The issue of what the videos show is being advanced at long last. Femr2 apparently looks at the gif in the above post as being a fair representation of reality. In order to hold that view, one has to suspend disbelief. Here is a still extracted from Femr2's gif:
[qimg]http://i1008.photobucket.com/albums/af205/jfibonacci/all43posting/shadowthingynoexplosion.jpg?t=1278156929[/qimg]
That gif, in its entirety, and in segments, including that seen above cannot by any stretch of reality be said to depict the properties of an actual jetliner crash.
The image confirms a jetliner has glided almost all the way through a steel, concrete and rebar structure without degrading, without bending, without exploding and without shearing off any debris in any realistic quantity. in fact, let's be a little more exacting here. The wings that we must necessarily infer have passed through the exterior wall have done so, according to the still excerpt from Femr2's gif, without leaving any sign of doing so. Look at it posters and lurers. It's right there in front of you.
I can anticipate that some will engage in a process of rationalization and of denial claiming the video lacks sufficient resolution and such like. Well, the fact is, that tail section of that shadow thingy should not be intact and should not be able to glide through and should not have been in the least bit visible at that instance. Yet, it continued to glide right through, once again, without degrading and without even slowing.
Posters, observation confirms that the shadow thingy is not a Boeing 767 and is not Flight 175. It is an illusion.
In fact, what is seen in Femr2's gif is the exact functional equivalent of a Roadrunner cartoon:
[qimg]http://i1008.photobucket.com/albums/af205/jfibonacci/album2/road_runner2.jpg?t=1278157297[/qimg]
The Roadrunner and the Shadow thingy are two examples of the same thing:
Special effects; or, as Evan Fairbanks said in the case of Shadow thingy, "a bad special effect."