One thing you seem to be completely unaware of is the compartmentalized nature of information, and how certain secrets are treated as the "holy of holies" which only a select few will ever be allowed to see the workings of.
Bill Clinton couldn't keep a blow job a secret, Nixon couldn't keep a break-in secret, even with vain attempts to cover it up !!
How could NASA's "secrets" still be secret??
Oh and why was the earth considered to be round by every astronomer since the time of Eratosthenes in Ancient Greece ??
Who bribed/paid Copernicus, Tycho Brahe, Galileo, Eratosthenes, Ptolemy, Keppler, Newton, Halley, Aristarchus, Aristotle, Hubble and Einstein (who died in 1955) ... who all supported the spherical earth theory but who all died before NASA was formed in 1958...
Now try to convince me that this world wide conspiracy has been going on for 2500 years !!