Lets see, how could the worst program work?....in the name of maximum equality share for the US and UK, and local jobs for AUS, US systems and weapons suite (or maybe even the reactor) is shoehorned into an Astute, BAE is hired as the integrator, and rips out all the perfectly good US gear and tries to splice it to the UK black boxes, and the whole thing is assembled by Australian pipe fitters and welders who are underexperienced with the specialized metals that go into sub work....ooh and several late changes in specs for new technologies and mission creep....