The message is:
That 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
And each year we discover a few more
Of those unknown unknowns.
—Feb. 12, 2002, Department of Defense news briefing
You're going to be told lots of things.
You get told things every day that don't happen.
It doesn't seem to bother people, they don't—
It's printed in the press.
The world thinks all these things happen.
They never happened.
Everyone's so eager to get the story
Before in fact the story's there
That the world is constantly being fed
Things that haven't happened.
All I can tell you is,
It hasn't happened.
It's going to happen.
—Feb. 28, 2003, Department of Defense briefing