Marcus and Michael go through the scandalous revelations about 10 years of failed planning on extending the operational life of the only submarines Australia has - the 6 Collins class - while AUKUS subs slowly appear. Disturbingly, the most senior Defence leadership - including the Secretary and the Chief of Navy (just promoted to be the chief of the entire military) were advised numerous times of insurmountable technical and engineering issues with the planned life extension. The main motors and diesel generators took up more room and would require a major redesign of the entire submarine, and the result would be a sub that had to "snort" for longer and so be more vulnerable. The whole project collapsed under the weight of its flaws because an external Audit got the story out.

But for years, the leadership failed to advise Government minis ...