UFO AND ITS SECRET

Mr. President,
I'm Rafik from India and I have few questions related to UFO and its secret which has been kept hidden or kept secret by not only CIA FBI but by every nations scret agencies but its clear that there has been UFO sight seeing, aliens body recovered from UFO crashes and many others witness within USA and around the world. You have had all records and proofs then why are you hiding it from public because there is nothing terror or fear going to rise among people if all the nations will disclose about the truth of UFO and aliens because peole are eager to know about ET.
Even from our history from egyptians to mayan to Indian historical structures caves its proved that these couldnt be made without the help of ET and hi-tech in those days.
Kindly let the people know truth.