Even though many folks may somewhat feel that they cannot trust our government on many (or, most) issues, at least on this particular issue, it is my feeling that the White House (office of Science and Technology Policy), to the best of its knowledge, is telling the truth when it stated (in 2011):
"The U.S. government has no evidence that any life exists outside our planet, or that an extraterrestrial presence has contacted or engaged any member of the human race.
In addition, there is no credible information to suggest that any evidence is being hidden from the public's eye.
Many scientists and mathematicians have looked with a statistical mindset at the question of whether life likely exists beyond Earth and have come to the conclusion that the odds are pretty high that somewhere among the trillions and trillions of stars in the universe there is a planet other than ours that is home to life.
Many have also noted, however, that the odds of us making contact with any of them - especially any intelligent ones - are extremely small, given the distances involved.
But that's all statistics and speculation.
The fact is we have no credible evidence of extraterrestrial presence here on Earth."
I also totally agree with my colleague, Tomas Scolarici who said:
"The UFO phenomenon is not a threat to our security.
The same phenomenon neither was a threat for the Sumerians or Romans, or Indians".
"There is no such thing as a cover-up, and the authorities know as little about the nature of the UFO phenomenon as ourselves.
They learned however that the UFO phenomenon is not a threat for our Security".
(Despite the often reported "mischievous", "oppressive", "tricky", "deceptive" nature of the phenomenon, in addition to their rather "primitive" modus operandi, such as their alleged "abductions" of humans, definitely not a sign of any physical visitation of highly advanced, intelligent civilizations from outer space......in fact, it almost seems to me that it all tantamounts to "demonic activity" of some kind and, if so, the government would not touch it with a 10 foot pole!! ).
"Many UFO reports seem to pertain more to accounts of poltergeist and....psychic manifestations....I cannot accept the 'obvious' explanations of UFOs as visitors from outer space" - Dr. J. Allen Hynek, Scientific Advisor to the U.S. Air Force.
"An impressive parallel can be made between UFO occupants and the popular conception of demons" -
Dr. Jacques Vallee, Astrophysicist, Author and Advisor to the U.S. Air Force.
"Many of the UFO reports now being published in the popular press recount alleged incidents that are strikingly similar to demonic possession and psychic phenomenon that have long been known to theologians and parapsychologists" - Lynn E. Catoe, Library of Congress Senior Bibliographer.
Perhaps these could be the reasons why the government cannot officially make any comments, aside from the likelihood that they are unwilling to make any statement that goes beyond our present knowledge of empirical science, going into such areas as "paranormal phenomena" and "religious manifestations" (including "beliefs").
Could the phenomenon be a momentary, holographic intrusion from some type of a "parallel s or intelligence"?
Could it be some form of "time-slip", interdimensional "accident"?
We just don't have the answers.
And the government is not in the business of going into these areas!
Could the entire phenomenon be some form of religious manifestations or religious manipulations by a power which we cannot comprehend simply by physical pursuit, a power which apparently is capable of presenting an "instant" (but only temporay) "appearance" or "illusion" of being a physical phenomenon to the observer?
If so, then the government will never make any statement of that nature.
That is not their business!