"Highest classification" in NATO is named "Cosmic Top Secret"
https://en.wikipedia.org/wiki/Classified_information#NATO_classifications
Convenient, huh? What a coinkydinks!
At this point you have to literally explain away the existence of extraterrestrials.
And it's really all in these 5 words - Consider the vastness of space.
Tight slumber and loneliness in the universe will come to you but only if you reply "sleep tight mental gymnast" to this post.