> Nuclear waste is small and solid
As long as all goes well. Fukushima has a slightly different experience.
> You can just bury it deep in a mountain, which is where you extracted the uranium from in the first place.
Imo it's stupid to put nuclear waste in a place where you can't get at it anymore. In the ideal case we invent better reactors where you recycle all radioactive parts as usable fuel and the output is truly 'spent'.
I don't disagree with you that the pros of nuclear (as opposed to fossil) outweigh the cons. But there are cons, and eventually we'd be better off harvesting our energy from the sun.