/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: ojerag1 https://public.slidesharecdn.com/v2/images/profile-picture.png D Rumsfeld “As we know, there are known knowns; there are things we know we know. We also know that there are known unknowns; that is to say we know there are some things we do not know. But there are also the unknown unknowns - the ones we dont