But there are much more facts that are neglected:
[1] The size of the hole is small for a plane that big
[2] There are multiple cameras in Pentagon where they were replaced and the footage wasn't given to anyone
[3] There are no parts of the plane anywhere, where other crashes show that big part of planes still remains
At the end of the game, none of them are in 9/11 commission report
Even if Al Qaeda is responsible for all of this, shouldn't these facts be investigated in your opinion ?
These are all very good questions bro and there are answers for all of them. I typed up a nice detailed response for you last night but ISP crashed before I had a chance to press post, so Ill do the short version here. As far as 2 and 3, there were plenty of plane parts scattered across the site and although the security camera video was not immediately released, it was eventually released in 2006 under the Freedom of Information Act. You can get the short version of the official account on Wiki under
American Airlines Flight 77 where you can also see a couple of pictures of the plane parts and watch the actual videos of impact from two different security cameras.
If you want to get a more detailed analysis of the official events, the following article is a GREAT read, although it can be very technical at times:
http://911research.wtc7.net/essays/pentagon/
I also strongly recommend taking a look at the following link to compare the damage from a C-130 crash into a regular apartment building with the similarly sized 757 into a heavily fortified building like the Pentagon. This crash actually happened in Iran:
http://911research.wtc7.net/pentagon/analysis/compare/c130crash.html
Another good video to watch is a test the US government did in the 80s crashing an F-4 Phantom into a concrete barrier to test the concrete walls around US nuclear facilities where the F-4 pretty much vaporizes on impact:
https://www.youtube.com/watch?v=RZjhxuhTmGk
After reading/watching all of these, if you still have ANY doubts, ask yourself this simple question. If this was not a plane crashing into the Pentagon, then what was it? Is the damage consistent with an explosion from any known bomb or missile? The answer should be a resounding no because there's no sign of an explosion which sends energy waves in all directions, rather than a plane crash where the majority of the energy travels along the original path of the plane.
The only thing that is slightly unexplained in most of the unbiased analysis is the size of the hole that you brought up. To understand this, keep in mind that the cabin width of a 757, where the majority of the energy would have been focused) is only 12 feet. Also keep in mind that unlike a bullet, the cabin of a 757 is not solid. As the nose of the plane (which has a lot of mass and is even smaller than 12 ft.) punches a hole through the exterior wall, you're trying to push a larger non-solid cylindrical object which is designed only to withstand atmospheric pressure through that hole. This causes the section to collapse on itself, rather than creating a much larger hole. To visualize this, imagine drilling a hole in drywall slightly smaller than the size of a straw and then trying to push the straw into that hole. You're not going to make the hole bigger by doing that, rather the straw is going to collapse on itself as it passes through that hole. It's simple physics.
So what about 1500 engineers and scientist that say there should be an independent investigation about 9/11, by the way, this is what Americans are saying not me
Add yourself and me to the list too and let's make it 1502!
As I said before, there's no question that all the facts were not released and there are lots of inconsistencies. There was a great program on the Passionate Eye (I think) on CBC that examined a lot of these. You may be able to find it if you look around on the web - highly recommended since it's done by real journalists doing real investigative journalism work for one of the best news outlets in the world.
But none of that changes the fact that if certain people in the establishment or outside of it went to such great lengths to set something like this up, they would have had a much easier time setting it up exactly the way it went down than faking or hiding missile strikes. There are so many places in the ME where you can set up a kiosk, offer people a few thousand bucks or just a chance to carry out jihad on Americans and you'll have lineups to Timbuktu - all you needed for this was less than 50 volunteers. don't you think that's a much easier task than to pay so many people on US government payroll to stay quiet or put a different spin on what happened?!