High level nuclear waste disposal.

A miner at Australia's Olympic Dam told me he and his collegues see little problem in storing canisters
in disused sections of the mine. After all some of the material may have originated there, though the half life and intensity of the alteration products will be greatly changed (like the americium used in smoke alarms). The mine already has tough security and drug testing and is in the open outback. A bunch of spivs (eg Al Qaeda) would get noticed.

I know Cigar Lake was flooded and Olympic Dam will become open cut, ironically if they can get enough water. However there must be some underground operations that would suit.

If I ran the circus, the metal oxides would be made into glass, the glass embedded in large concrete blocks, and the blocks would be dropped into deep ocean trenches where crustal subduction would carry it away for an appropriately long time.

The problem will solve itself.
But not in a nice way.

This glass embeded is what was to be tried to be done at hanford where waste is leaking into the water table and seeeping torwards the river. The project may have been abandoned because no one cares like the damm in iraq
"Lets see how much money we can spend acomplishing nothing,
buy the wrong equipment build every thing with an unuseable design. I think the zeromotorcycle is interesting try to make a big move torwards eletric vehicals. I have been lookin for 3000f maxwell capacitors. Very disapointed about the news about the polution created by cannola into biodiesel. Reconsider sea grown green plants for energy production.