I don't know about the 4th one, but I question the one that ended up on the Pentagon - I keep hearing descriptions of how radar tracking of this plane had it on a direct course for the White House - and it made a sudden manuver and crashed into the Pentagon. Could it be that this plane, with it's ID transponders off, and probably not responding to radio calls, etc. reached the point that it was taken out by a SAM, like from the roof of the WH and that's why it crashed into the Pentagon?
Does this qualify for a tin-foil hat theory??
not tin-hat, but not realistic. The planes hit where they were aiming....
Could it be that this plane, with it's ID transponders off, and probably not responding to radio calls, etc. reached the point that it was taken out by a SAM, like from the roof of the WH and that's why it crashed into the Pentagon? I heard an eyewitness report on the news from what I think was a pilot who saw the plane which he said was definitely an American Airlines 757 crash into the ground just before it skidded into the Pentagon. He said that he had no doubt that it was intentional since whoever was at the controls throttled up the engines shortly before impact.