Read Mr Farmer's book. He clearly states that he believes the "dishonesty" on the part of NORAD, FAA, DoD wasnt to cover up an inside job, but it was to cover up just how inept and unprepared those agencies were that day.
That is your opinion only. Some of us have not read the book yet.
However, what is being admitted is the 911 commissioners lied to the American people and they tried to help a government cover-up their crimes.
You do not know what was covered up! No one knows what the lies were that were told by NORAD, or FAA, DoD for the 911 commissioners to cover –up.
As far as the agencies being inept, unprepared that is your opinion, because no one know the truth on both sides of the story.