"How should Australia manage radioactive waste? The short answer is that there is no obvious approach; hence the need for an independent Commission of Inquiry."

The real short answer is "like everybody else".

If there were to be a commission or whatever to examine the issue(s) it would of necessity have to examine the best information re the risk of radiation various levels to the humans and others. Noel et al would hold to the belief/credulity that ANY level of radioactivity is dangerous. I, and others would rely on the heavy duty analyses of Hiroshima, Nagasaki and Chernobyl etc which all, without exception contend that no level below 100mSv constitutes a risk a all.
It would be fatuous to examine anything to do with nuclear waste or other nuclear issue including power in the absence of a firm scientific decision on the fundamental issue - what level of radiation, if any, is safe?

Oh God.

The invitro solution was great.

Then dump the stuff back the hole it came from. As it is now depleted, it will be as safe, particularly in vitro, as it was before it was dug up.

There you are, problem solved, & for free without making a bunch of drongos rich sitting on their brains in a commission.

Then start developing a technique to get the stuff back. It will become valuable again sometime, if we humans last that long.

Next problem please.

You mistake me, I suggested dropping it on the subduction zone, not just at the bottom of the sea.
Over time the containers would be carried down through the crust, that's what that zone is doing constantly, and which is how the long-term safety requirement is satisfied.

I remember viewing a news item a few years ago about Finland building a huge nuclear waste repository inside a mountain in a remote part of the country, and if that's the case, why bother setting up a commission to address that question here?