We had Molycorp 15 years ago being run by a Canadian magnet company. It could have worked out, but the engineers were clueless about process scale up and sourc

We had Molycorp 15 years ago being run by a Canadian magnet company. It could have worked out, but the engineers were clueless about process scale up and sourcing the acids required for refining, which, they said, were being consumed by the fracking boom. In any case, the Mountain Pass site has a lot of light rare earths, but little of the heavy rare earths. The heavier rare earths come comingled with a lot of radioactivity. So the business ideally involves removal of the desired heavy rare earths, then disposing of the radioactive tailings back to where they came from. No doubt we have plenty of the heavier rare earths in tailing piles from the nuclear arms build up over many decades. It's a matter of good long term management.