Usually they talk about how the newest reactors are more efficient and reliable than ever, but still cost billions to manufacturer and maintain, and only if liabilities are removed from those involved with building it.
Why would we need more than one waste storage site?
All the waste produced by power generating reactors in the US ever would fit on a US football field and be about 30 feet deep. That's less waste than one coal plant produces in a decade.
All that waste we can't figure out what to do with, that no one wants to store or transport? That's from making nuclear weapons. No one sane wants more of those.
Regarding the volume of waste, would you feel comfortable sitting next to even a gram of raw nuclear waste? Even if the volume is small, it still needs to be handled with extreme care. If the handling of weapons waste is any indicator, that level of care has yet to be demonstrated.
However I don't trust the corporations in running it. When profit motive rears its ugly head, bad semihidden shit happens.
I'd trust the military in running it. They do have operational nuclear knowledge.