alt Hacker News"At some depth it ceases to matter despite what the activists seem to think."
Yes, but to be really safe, that point might be so low, it becomes really expensive, also getting it all there without accident - which is the whole point, of course radioactive waste can be treated safe and sound - but that is expensive and people and companies and governments are known to be sloppy.
Sure but the limited volume really puts an upper bound on the expense. You could package it in containers small enough for a single person to carry and then have people individually walk them down to the bottom of the mponeng mine and it would still be reasonably affordable.