A major event needing meticulous planning also needs a coherent script for the actors involved. Compartmentalised knowledge is essential if secrecy is to be maintained.
This is quite possible to achieve as witnessed by the development of nuclear weapons and the continued secrecy around that subject.
It’s the tidying up of 9/11 which show the inconsistencies with the official story. A huge operation needing meticulous planning can’t cover every detail perfectly and so the official story unravels as every detail is scrutinised.
James Corbett has a remarkable mind and is a brilliant researcher. His video below dissects the actions of some of the actors involved.