Comment Re:They literally sold the last bit two years ago (Score 1) 116
There's actually another source of helium probably buried to not alarm the public - fast fission reactors. You know, the ones that make plutonium. One of the byproducts of actinide decay is helium. The US killed its attempt to modernise fast reactors in 1994 when it killed the Integral Fast Reactor. While plutonium is a byproduct, if it isn't removed through reprocessing, it is also a fissile fuel. Guess what. though - all Gen IV reactors that I've seen are fast fission reactors. Even some Gen II+ designs are - Russia has some at Belonyarsk and they've sold the design to the Chinese. Even if not betting on fission, MIT has a fusion project that is promising - H + H = He.