Thank you for not suggesting that

I like this bit from the MSNBC story on some more recently released British Defence UFO files:

The head of the ministry's UFO desk wrote briefing notes in 1993 reporting a spate of sightings in southwest England and speculating whether they might be connected to Aurora, a secret U.S. spy plane whose existence has never been officially admitted.

Atop one of his letters, someone scrawled: "Thank you. I suggest you now drop this subject."