“…Indeed, in July 1945, just as Clarke was revising his proposal, the JIC reported that most aspects of deception had to remain hidden, including the role that Ultra played, that it was a coordinated endeavour, and that double agents were integral in misinforming the enemy. 40 Even though Clarke, strictly speaking, would have respected these boundaries, the very idea of an official history contradicted the defensive approach to information control. What the JIC and others wanted was an impenetrable barrier erected around wartime intelligence.…”