A new BBC documentary has been screened on Bletchley Park Code Breakers, on how the Nazi Lorenz cipher was cracked. (Lorenz has been described as Hitlers 'Blackberry' - not to be confused with Enigma). The doco provides new archival material on the contributions of William Tutte and Tommy Flowers. Tutte with his reconstruction of the Lorenz cypher/decypher mechanism, based only on intercepted messages and later his statistical algorithm which required a computer. This was Tommy Flowers contribution. He invented and constructed of the worlds first electronic programmable computer, 2 years before ENIAC, to run Tutte's algorithm. The rest as they say is history, but for most of the last 60 years this history has been kept secret. Some secrets have been kept for too long. http://www.youtube.com/watch?v=bMu8UiHJHgs Stuart