If it can go boom it’s not safe.
That’s why we have safeguards.
Your water heater can go boom too, but it has safeguards.
If your referring to nuclear, it can't. At least not in a nuclear way. Safer, than any chemical plant I've ever worked at, and I've worked at lots of both.
Close to 80% of France's electricity comes from those "unsafe" generating plants. Which, of course, WE pioneered.