Nuclear waste in salt domes? what the fuck kind of waste are we talking about here? a few curies of low-activity crap like tritiated wastes, natural uranium, etc. I.e either low-lifetime or low intensity nuclear waste. I hope its no more than that. Some of the stupid things we (the human species, and the US) have done.
Such as the US simply taking it out to sea in steel containers and tossing it (not to mention hundreds or possibly thousands of tons of former US stock chemical munitions., sulfur mustard, G- and V-series nerve agents, lewisite (I think. This one really has no non-hazardous decomposition products, its an organoarsenical blister agent, so regardless how it degrades, arsenical muck is a certainty, and how deep to sink it? Theres pretty much some forms of lfe no matter how deep you go, even in cores of solid rock drilled from deep ocean trenches that reach seven miles down)
Random observation:
The amount of spam coming in my meat-mail is fucking ridiculous, and as I BET most of it won't end up anywhere else than a landfill pit in china. Although I did get a free 100-snack box offer to persuade me to fork out cash for more. I won't buy from spammers on principle, I could certainly use the free food, as I don't have enough money for enough food a lot of the time.