Learn? We've known for decades.

When did Chernobyl break ground? 1972, operated by lying soviet bureaucrats.

When Fukushima Daiichi break ground? 1967

When did Three Mile island break ground? 1968

There have been a half-dozen whole generations of nuclear reactor developed since then, drastic reductions in the amount of waste they generate through advancements in nuclear chemistry, and now a whole new paradigm of SMRs.

All in pursuit of greater safety from a bogyman that is nothing but an echo of the past. It's like the Mill architecture people, still trying to design a CPU to beat the itanic when the rest of processor design has moved on.