Not everyone in the gubberment knows the truth. That's why they have security classification levels. Someone in payroll or the cleaners do not need to know all the secrets within the organization just because they work there. The truth could be known by just a few individuals. People who work for NASA don't have all the pieces to the puzzle. Usually they are assigned to groups and given only enough information to do their part, but not enough to know any nefarious purposes to what they build or do.
This notion that the conspiracy has to be held by millions of people so is unsustainable is a load of rubbish. Does someone working in a police headquarters managing the payroll or running background checks know about every/any secret undercover operation? No! Why would they? Given the sensitive nature of the shape of the Earth, there would be even less people 'in the know'.
Do not underestimate the power of indoctrination. You could should damning compelling evidence to the likes of shillinoz or JackBlack and they would not believe it.
...and you know all this, how? Did you ever work for the government? Did you ever hold a clearance? Were you ever read into any dark mysterious project?
You have stated a number of assertions but, how can you back any of them up? Everything you said could be a script from the X-Files. I'll agree with you on compartmentalisation which is what you are trying to describe but, do you have any clue how many people have worked with satellite imagery? Do you know how extensive satellite imagery is even used? You do realise that images are sent from a satellite back to earth as digital information and that information is used in a myriad of ways. For example, you cannot see the infrared wavelength but, to visualise infrared waves and their effect on the planet, you can't just whip out a Polaroid and voila, off you go.
Some of this information is classified and some of it is not. Different satellites are used for different reasons. Not all of them are floating "spook mobiles".
You do agree that satellite imagery exists, yes? If so, how many satellites do you think are up there? Do you think that they go to one side then turn around and come back? Do you think that every image is "manipulated" to create a false curve?