need to know

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need to know

A criterion used in security procedures that requires the custodians of classified information to establish, prior to disclosure, that the intended recipient must have access to the information to perform his or her official duties.
Dictionary of Military and Associated Terms. US Department of Defense 2005.
Mentioned in
References in classic literature
All I need to know is, how MUCH of an ogre is invisible; then I know how to locate his vitals.
Although she knew well that I was aware of a certain circumstance in her life of something which might one day cause her trouble, she would speak to me about her affairs (whenever she had need of me for a given end) as though I were a slave or a passing acquaintance--yet tell them me only in so far as one would need to know them if one were going to be made temporary use of.
"But the world don't know and don't need to know," he cried.
By whom it was torn out you have no need to know. For what purpose it was torn out you may discover for yourself, if you will.
"A fess -- a fess is -- YOU don't need to know what a fess is.
"I do not need rest, gentlemen; I need to know whether I am among enemies or friends."
Do we need to know, for example, what a close friend has discussed with another close friend about a third close friend's doings?
"Everything You Need to Know About Confronting Xenophobia" is a fact and photo-filled treatise/resource for students grades 6 and above from the Need To Know Library series.
STUDENT SPECIAL As students across NI prepare for Freshers' Week, Home finds out everything you need to know before term begins.
"We need to know what views he will convey when he is formally consulted.
They need to know that 5 per cent is the proportion of them who will be able to buy a home.
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