This seems to imply a subtler point in the distinction: "Canberra was reportedly particularly keen on the French bid because of the ability to switch the Barra

This seems to imply a subtler point in the distinction: "Canberra was reportedly particularly keen on the French bid because of the ability to switch the Barracudas from diesel to nuclear power — technology that was deemed political poison so recently after the Fukushima disaster in Japan, but that the government believed could become more palatable in time." https://www.politico.eu/article/why-australia-wanted-out-of-its-french-sub-deal/ https://www.politico.eu/article/why-australia-wanted-out-of-...