that say that something hasn't happened are always
interesting to me, because as we know, there are
known knowns; there are things we know we know.
We also know there are known unknowns; that is
to say we know there are some things we do not
know. But there are also unknown unknowns - the
ones we don't know we don't know.
Donald Rumsfeld - This comment before the war
in Iraq won the US Secretary of Defence the 2003
Award for Gobbledygook from the Plain English