在第二次世界大战期间,德国最高统帅部的统帅们,曾不止一次地确信,同盟国已经知道他们的一些最机密通讯的内容。当然,纳粹头子极想找出并堵塞这个危险的漏洞。他们坚信问题出在叛变行为。他们所没有料到的竟是这么简单的一回事:英国人能够系统 During World War II, commanders of the German Supreme Command had more than once convinced that the Confederates already knew some of their most confidential communications. Of course, the Nazis are keen to find and block this dangerous loophole. They firmly believe the problem lies in mutiny. What they did not expect was the simple fact that the British could systematically