One of the problems at this point in the war is that the Allies have enjoyed for several years, as Mr. Winterbotham puts it, having “the enemy’s intentions handed to them on a plate, [and they] had come to rely on Ultra [Magic] to such an extent that when it gave no positive indication of the coming counterattack, all other indications were not taken seriously enough.”18 Winterbotham points out that there was a lack of high-grade Ultra before the attack. However, he also claims there was “logistical Ultra” that was not properly analyzed.
