How can you KNOW that?
Since GWB stonewalls the entire nation regarding the information available?
And we know that if it were favorable information, we'd have been made aware of it.
And since credible people say 9-11 was avoidable.
Condaleeza Rice said that no one had thought anyone would fly an airplane into a building. Even though a book had been written about it. And her job is National Security Advisor. Didn't think anyone would fly an airplane into a building.
A lot of people had thought of it, and Sandy Berger said it was regarded as a tactic which might be used.
I think it's not really possible to say that 9-11 was inevitable.