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The US government has been stockpiling it since 1925 in the National Helium Reserve (https://en.wikipedia.org/wiki/National_Helium_Reserve https://en.wikipedia.

by tjalfi 10y ago

The US government has been stockpiling it since 1925 in the National Helium Reserve (https://en.wikipedia.org/wiki/National_Helium_Reserve https://en.wikipedia.org/wiki/National_Helium_Reserve).