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There are known unknowns, that is to say that there are things that we know we don't know. (whiskey tango foxtrot, Donald?)
by Bushmonkey October 01, 2006
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These are the things that you know you don't know. Coined by Donlad Rumsfeld, former US Secretary of Defense.
Boss: Are you saying we don't know what this project will cost?

You: Yep, it's a known unknown!
by seven8521 October 31, 2009
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