A president has oral sex in the white house and it cant be kept a secret yet ufos are hidden from everyone. Amazing LOL
Hidden from everyone? LOL. Who said that? Somebody is clueless on this subject and the subject of compartmentalization and secrecy.
Anybody with half a brain who looks into the subject knows that hundreds of military guys and girls have spoken out about what they experienced/witnessed with regard to UFOs while working for their government.
And as far as a lot of people being able to keep a secret without leaks? Do yourself a favor and read up on how the Manhattan Project and MKULTRA were kept secret for so long.