secrets can be kept better than you know. under a well disciplined, compartmentalized hierarchy most participants are clueless. only an elite group at the top know what's going on.
History shows it isn't that easy to keep such secrets. The secrets always get out.
Secrets are irrelevant. This is about the way the conspiracy lies and covers up the facts.
not real history
Remember that history is just that. His story.
The fact is we know that 9/11 was no false flag. I am not denying false flags have happened, but 9/11 was not one of them.
don't speak for everyone
Okay, some may not know the 911 was not a false flag attack. A critical evaluation of the evidence points to there being no demolition though.
