This is my first post, and I will certainly try not to break any rules, if I do I apologize in advance, and will change anything that needs to be. I found your question while searching and found it very interesting. I believe I can answer or at least have plausible explanations. I will start with the 2nd of your questions. The most likely scenario for what happened that day, would be something to the affect...that the upper echelon of the Bush administration planned what happened at the pentagon. Having war game scenarios and test hijackings etc...this way it would confuse those who might normally intercept such a hijacking. Hence Norman Mineta's testimony. The Zionist/elites...whatever you want to call them...had something much more sinister in mind...they wanted carte blanche, a blank check to do what they wanted in the middle east ...restrict civil liberties etc... They took advantage of what they knew would be a very confusing time for those who would normally intercept the plane and struck. In regards to how it was "screwed" up...it was really quite the opposite. I believe the 4th plane was headed for building 7...the two towers had to fall to get a clear shot at it. But our fighters were able to scramble and the plane was shot down. I think even those who admittedly support the official story have some doubts as to whether that plane was shot down or not. Obviously Larry Silverstein would be a part of the plot to take the towers down...while using the pentagon in essence as "cover". The first question you have...I'm not sure if this is a suitable answer, but could not the explosives have been planted below the impact zone? Even if they were at the impact zone it would only cause a greater explosion, and perhaps the building to drop earlier..I'm sure exactly when the building dropped really was not that important. As far as proving it could survive a plane impact. I'm not sure I could do that... I would need lots of time and money to conduct experiments, to anything I could come up..I have not found any that someone else did. But as stated previously I'm not sure that it is necessary, thermite cutter charges are the most likely thing to have been used, and it would not matter if some went off early.