Oh I know, the Americans went all nuclear ages ago. And it actually makes a lot of sense for them to have done so at the time.The US does not build non nuclear subs and unlikely we will buy US nuclear attack subs, even if they were willing to build them for us. So our options are German, Japanese or south Korean for large subs. Most of the subs on the market are to small for our stated needs.
I was saying hopefully we learn some lessons from how that situation evolved between the French & Aussies. And the French finish the redesign before it is proposed.