The history of NASA isn't all that great.
It was started by Crowley's (self-proclaimed, if not in reality) protege, Jack Parsons-- rocket scientist / occultist. It was developed and run by the ex-Nazis from Germany, post- WW2-- and it has made some of the most spectacular claims, ever made by man...
Went to the moon! And then,
crap... 'lost the technology.'
Really, they said that.
Over $20 Billion is nothing to sneeze at.
It could be any of those things-- it could be something else. But based on what I posted above, there is sufficient reason to be suspicious.