The military industrial complex has in all likely hood committed crimes against humanity with their UFO related behavior. If the truth is revealed their duplicity would be revealed at some point. The truth might also show that vast fortunes were made by companies and individuals at the expense of humanity and the American tax payer. The MIC has a great deal to lose by having the truth come out in this situation and thus they call in their favors from the Republican representatives they bought and paid for to further block their damning crimes.
Just look at how conservatives on FR will believe every word uttered by US intelligence and DOD agencies and yet in the next breath damn the entire US government for its lies and criminal behavior. Their behavior is beyond weird.