In addition, the subject has become so thoroughly overwhelmed with obvious false reports, discredited sources, hearsay, manufactured falsehoods, misunderstandings, missing information, added inapplicable information and a myriad of other conflicting complexities which have made the subject laughable or unapproachable as a science. This may be intentional, or simply a reflection of the general chaos and barbarism that is Humanity.
As for government denials and cover-ups, the events of September 11, 2001, have made it abundantly apparent to me that the U.S. government has destroyed any vestige of trust the American people and the world may have harbored, even through the Vietnam war, Watergate, and many similar betrayals, in the "honesty" of the American government, military and intelligence community, by blatantly lying to it's own people about almost anything and everything.