Any Australian who lived through World War II would remember the frightening posters warning that 'Enemy Agents are Listening' and 'Loose Lips Sink Ships.' The Fifth Column was the name given to the Axis agents believed to be lurking in Allied countries. Their mission was to carry out acts of sabotage, cause fear and confusion and spread rumours on the home front. The Fifth Column was attributed with being responsible for the Allies defeat of 1940 and also for the Japanese victories at the start of the Pacific War. Yet, for all this hype, the Fifth Column never truly existed as it was...