If they wanted you to think that then there would be actual "leaked" documents.
The only evidence I've seen are videos of ex CIA agents talking about it, but there are also plenty of videos of them talking about aliens and 9/11, etc. so it's not very hard evidence, also no way to tell if they are who they say they are.
The reason I posted it is because of the timing and it actually makes since. There is a clear motive, on the other hand hiding that the earth is flat there is no motive. Not to mention all of the evidence and actual proof that the earth is not flat. Why did the movement begin to get so popular a few years after 2001? There may be some truth to the 9/11 conspiracies, I definitely don't think Bush had anything to do with it, but possibly the FBI or CIA you never know. Or maybe its a completely different conspiracy they are trying to cover up, but the timing would suggest the 9/11 attacks. The timing of the flat earth movement and how big it got in a short amount of time even though there is absolutely no scientific evidence for it is very suspicious, really makes you wonder.