“I accept the need for absolute secrecy in this and I hope you will too…

…Now, I’m sure you’re all aware of the extremely grave potential for cultural shock and social disorientation contained in this present situation if the facts were prematurely and suddenly made public without adequate preparation and conditioning. Anyway, this is the view of the [the Mikes]. The purpose of my visit here is to gather additional facts and opinions on the situation and to prepare a report to [Congress] recommending when and how the news should eventually be announced. Now, if any of [r/UFOs] would like to give me your views and opinions – in private if you like – I’ll be only too happy to include them in my report. Well, I think that’s about it. Any questions?”

-2001: A Space Odyssey (1968), with some very minor liberties taken.