Not sure why this is downvoted. Fission works, and it works well. The waste problem is massively overstated and also, aside from NIMBY politics, solved.
There are also things like tidal waves, earthquakes and other unforeseen things that do pop up from time to time and cause big issues. We can say it's rare, statistically very unlikely, etc., but no one wants to be a Fukushima and that image is still pretty fresh and hard to combat logically.
That said, one thing that I think would really help is to have smaller reactors, more of them, and using a standardized and approved design. I remember hearing an interview with an Oregon State University professor some 15+ years ago who was working on a project that did just that. IIRC, he said one major contributing factor to the cost of building a reactor, besides waste, is that basically each one is designed and engineered from scratch. He envisioned more of an assembly line. Universal design, universal parts, etc. I believe they went on to form a company called NuScale and a quick DDG search led to this:
> "Portland company's innovative nuclear reactor OK'd by feds (September 26 2020)" ... The modules — each capable of producing 60 megawatts of energy, which is enough to power 45,000 homes — also allow a plant to scale up as needed, with a maximum capacity of 12 modules for a total of 720 megawatts.
