Saturday, August 31, 2013

Donald Rumsfeld Unknown Unknowns ! (English)



There are known knowns; there are things we know that we know.
There are known unknowns; that is to say, there are things that we now know we don't know.
But there are also unknown unknowns – there are things we do not know we don't know. ”
—United States Secretary of Defense, Donald Rumsfeld

The above statement was made by Rumsfeld on February 12, 2002 at a press briefing where he addressed the absence of evidence linking the government of Iraq with the supply of weapons of mass destruction to terrorist groups.
http://en.wikipedia.org/wiki/There_are_known_knowns

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