Bob King

An incident comes to mind that you may consider worthy of note.

 After working as a voluntary interceptor at home for a year, I was enlisted to work full time in the Radio Security Service at Arkley View, the Service headquarters near Barnet. My work, instead of further intercepting, was to examine some of the hundreds of message forms coming in daily from our full and part-time Morse code operators. I had to decide which were the intercepts of the German secret intelligence services and discard the others. I then had to  work out to which service link they belonged before they could be sent to Bletchley Park where  Dilly Knox, Oliver Strachey and their successors set about  deciphering the five letter code.

One day our Commanding Officer, Lt Col Morton Evans, called us all together and told us, in hushed tones, that we were never on any account to use the term 'Machine Code' or discuss this matter either in the department or outside. As, up to then I, and I suspect  many others, had never heard of Machine Code it could have been counter productive.  It was not until many years later that I discovered that he was referring to Enigma.