Your browser is no longer supported. For the best experience of this website, please upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Alan Hawkins

One thing’s for certain, much is still unknown

“There are known knowns,” former US defence secretary Donald Rumsfeld famously said in 2002 describing the cloud of possibilities and information facing policy makers, before going on to describe the “known unknowns” and the “unknown unknowns”.