“There are known knowns. These are things we know that we know. There are known unknowns. That is to say, there are things that we know we don’t know. But there are also unknown unknowns. There are things we don’t know we don’t know.”This is the famous (or infamous) Donald Rumsfeld rumination on the maddening uncertainty of the world, a quote that lies at the heart of the recently-released Errol Morris documentary “The Unknown Known.” Rumsfeld adds the concept of the “unknown known” – times when we think we know what we are doing, but we don’t.
Read more: http://dailycaller.com/2014/04/21/errol-morris-swings-at-rumsfeld-and-misses-in-the-unknown-known/#ixzz2zcDpLljm
