Parts of the cockpit would have continued on through the building but there was no hole in the building. That cockpit became some kind of a shot gun load of thousands of high speed pieces BUT these pieces were not fast enough to escape the fire along the trajectory.
You can see it best in the videos of UA175. Even the huge engine that went through the office space did not escape the fire.
[qimg]http://img515.imageshack.us/img515/3024/pic00310.png[/qimg][qimg]http://img829.imageshack.us/img829/6831/pic00311.png[/qimg][qimg]http://img820.imageshack.us/img820/4985/pic00312.png[/qimg]
Same for AA11
[qimg]http://img444.imageshack.us/img444/28/pic00318.png[/qimg]
Sorry. It looks like ImageShack do not link the Wolfgang Staehle photographs but you can find it here:
http://www.911conspiracy.tv/Naudet_plane_crash_slideshow_v2.html
That's why the debris looks this way:
[qimg]http://img810.imageshack.us/img810/6407/wtcdebrisseatcushionaa1.jpg[/qimg]
So even if that passport had a chance to went through the building, it had no chance to land at Vesey St. It had a infinit small chance to escape the fire and it had no chance to escape without scratches. It's insane.
In the same way one could state that you can shoot at a passport without leaving any trace. And that passport made it against the wind back to the other side of the building. NO WAY!
You talk about all the fluttering paper? Printer paper and documents from the offices? Well, the fuel explosion caused a lot of pressure abel to blow the windows out. Sure, there was a lot of paper but certainly not from the cockpit with a high speed crushed airplane coming behind it followed by 10000gal of vaporized fuel exploding and overcoming every piece of metal.
"You assume that every immigration worker..." No. I assume that it makes no sense to use correction fluid for any kind of fraud. I assume that possibly one immigration worker or visa guy or who ever is enough to notice it if looking at it BUT he probably wouldn't notice that stamp among stamps without correction fluid. That "fraud" is like putting a huge exclamation mark behind that stamp. Once noticed it is nevertheless NO PROBLEM to still read what the stamp is saying.
I furthermore assume that these hijackers allegedly had additional passports for Pakistan, Iran, Afghanistan if there ever went there. At least the FBI is stating that the absence of these stamps is a clear sign of a fraud as well. Yet, the FBI is stateing that there are some/many fraudulent stamps they don't show to the public for whatever reason. Tell me one plausible reason to use an original passport - a clean one - or later with saveral stamps from Malaysia, Turky... - and put a lot of fraudulet stamps in it. Does it help anything. Something like "Hey, looks like a student who travels all the time. He's OK."
If there is no entry stamp for Pakistan then they even do not need a fraudulent exit, right? So what for?
The only plausible explanation I can imagine is a fraudulent pass given by some unknown man in buisness suit to the authorities. THEY wanted some obvious frauds in it. No one else would have any profit of correction fluid and additional fraudulent stamps. It's nonsense.
Any hijacker or terrorist dont want to be noticed at any cost. They don't need to buy beer by amateurish painting WHITE over a stamp.
...and in the end it's not the only passport story in such a nonsensical way.