Comment Re:So um (Score 0) 42
The problem is uranium and thorium.
Rare earth metals tend to be found in the same ore as uranium and thorium. There's rules on what happens after uranium and thorium reaches a certain concentration in tailings. So, only those that are able to find a buyer for this uranium and thorium will dare touch these ores. Because there's no real market for uranium and thorium the costs for mining rare earth elements in the USA are very high. The tailings with "too much" of naturally occurring radioactive materials, or NORM, is considered some kind of threat for nuclear weapon proliferation and so is tightly controlled in US federal law. This is in spite of the fact that ore is a very long way from an enriched uranium "Little Boy" style weapon, and any nuclear weapon using thorium in the core is still theoretical as the one or three tries to detonate a thorium core weapon were considered failures. It's not that they didn't blow up, they certainly did, it's that thorium wasn't seen as adding any power to the weapon or at least was only adding difficulty to weapon manufacture over using uranium with no benefit.
If people really want to make a nuclear weapon then there's no stopping them. There's uranium everywhere, including dissolved in the sea. There must be better ways to restrict people from building a nuclear weapon on the down low in the USA than keeping guard over ore with a wee bit too much uranium in it. There's nothing rare about rare earth metals. There's plenty in the USA, and we need it. There's no mining for it because the thorium and uranium can't be sold, and it can't be dumped back in the hole it came from. The tails have to be hauled off to some government facility and stored as if it were weapon grade plutonium. This is expensive, and so mining for rare earth metals in the USA is expensive. With more interest in nuclear power there may be some relief on the costs for some ores as that means a market for uranium, but that still leaves thorium as a problem so long as it is considered "weapon grade" when it clearly is useless for making weapons.
To show this isn't exactly new I thought I'd look for news items about this. Best I could find with a quick search is 5 years old, but this issue goes back decades.
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