Re: So where would that leave developing a sugar solution fuel cell?
Sure we do!
Bury it.
I'm serious, that works.
This waste will remain deadly dangerous for hundreds of thousands and possibly millions of years. As a technological species, we have exactly zero experience creating anything that lasts even a tenth of this time. It would be an epitome of hubris to pretend that any deep geological repository we create will contain the waste for long enough, except by an incredibly lucky accident.