While there may be corruption afoot, part of the reason they couldn't move the entire supply at once is because it's so hard to store. Helium can seep through a

While there may be corruption afoot, part of the reason they couldn't move the entire supply at once is because it's so hard to store. Helium can seep through a steel tank without difficulty. The US government keeps its helium in an old mine dug out of very dense rock. Apparently it is one of few facilities capable of long term helium storage.