Yes but mate there are about 5 million people walking round New York on that day, hundreds of thousands of tourists and only one person managed to get the first plane hit on film, and that was nearly missed. No security cameras, nothing at all caught that first plane to my knowledge. If there was a second hit on the pentagon, then there would have plenty plenty of cameras filming it just like NY.
Now compare that to the Pentagon in Washington, how many people walk round the pentagon with cameras everyday, zero because the secret service come out and tell them to put it away. The numbers of locals and numbers of tourists would have been about 5% of those in New York, the place where only one camera caught the first plane.
But I ask anyone, what was it then that hit the pentagon, why did they hit the pentagon and where has the plane with all those people actually gone to?