If we wanted to build nuclear out like it was the 70's we needed to ensure that 3MI didn't happen in '79. This was the death of the industry in the US. Chernobyl buried it in a lead coffin 6 feet deeper, and Fukushima topped it with concrete. On top of that in the war in Ukraine with fighting around the nuclear power plants has made us that much more aware that the stable political environments that nuclear requires cannot be guaranteed.