We are the first and the biggest nuclear weapons maker in the world. We had best not use those weapons by exploding them. But the history is awful and its consequences will be with us for a very long time. The major nuclear accidents, beyond those that were planned, like open air testing, and deployment in Hiroshima and Nagasaki, and unethical releases at Hanford, are the whole world wide array of unsafe light water uranium reactors. And the big piles of long lived high level radioactive waste.
What can we do about those problems?
Replace those reactors with walk-away-safe Molten Salt Reactors which can _use_ that waste to make heat and electricity while burning it up and leaving a tiny residue of waste that has a half life in hundreds of years rather than the many thousands that we now face. When we have used up that waste in five or more decades, then we can use the safe reactors to burn thorium which we have an immense supply of. These will give us the ability to make more fresh water as well as power our industry. Look up WAMSR to get a taste of how to do this.
Still we should also expand our use of renewable resources and develop many ways to store energy for when the sun is not shining and the wind is not blowing. My own favorite is ultra-capacitors which last longer than batteries and can cost less.
Don't give up on nuclear just because the military uses have led us to very bad and dangerous reactors in the past. The future can be bright.