There are always a lot of interesting research projects brought up about what to do with the nuclear waste in the future. But never anything cost effective actually in production yet, and it's not like they haven't hade some decades to get them going. If we can cite <future technolog> as our solution, I suggest that we go with fusion reactors directly.

The main barriers for building new nuclear plants are that they aren't cost effective, so no one wants to invest in them. I'm certain they could be built cheaper without regulations about safety and funds for long term storage of waste. But I don't think we want to go there.

(Your second link directs me to a documentary about Bill Gates. How is that relevant?)