It's a lot easier to believe in corrupt government officials than it is to believe the earth is flat. The thing is that the government doesn't even have to be particularly good at keeping the secret any more; anyone who breaks the silence is dismissed at crazy.
No, because if the conspiracy were as extensive as you say it is, then there are heaps of evidence, beyond memos, that would convince anyone. Of course people on street corners who smell like urine will be dismissed as crazy.
Think about all of the questions people answer with "conspiracy" and look at what that would require, the paper trails and physical evidence etc.
And, as I said before, anyone who wanted to break the silence would KNOW that everyone would think they're crazy and would steal evidence to prove their case.
As for those "infallible" picture, I guess someone missed the Fox special on how the moon landing was faked.
I've seen specials real experts (people with jobs that specialize in knowing everything about their field*, not guys who obsess in their basement about the government and "conspiracies") debunking that conspiracy.
And I'd like you to go tell Buzz Aldrin that the moon landing was faked. He punched out the last guy who said that to him.
Really think, what "Evidence" would you need to see to convince you that the earth is flat? I'm guessing, if you're honest with yourself, the answer would be "nothing would ever prove that to me". Maybe a personal trip to outer space, but in terms of photos, documents, confessions... I'm pretty comfortable in saying you would never be convinced. I know I wouldn't.
A Computer that could be authenticated as being from the 50s/60s that could Generate Images that NO modern technology could detect flaws in. A former astronaut/President/top-level scientist saying it was faked.
You know, as I write this I think of another question... How do you explain what we see when we look through a high-power telescope? I mean, if you drop a few coins you can get a telescope that cane show you the detailed surface of the Moon (among other things that poke holes in the FE model), not to mention what you could see if you took a trip to a nearby observatory, with one of those massive telescopes.
Maybe I'll search around for observatories and post a list so you can take a trip and tell them you'd like to use their telescope to prove the Earth is flat?
*Not just scientists who would be "in on it", but film experts, and other fields who wouldn't be "in on it".