I watched that report bemused. Apparently it was in short supply???? and it's extracted, not manufactured (there is SO much I don't know!!!). And who thought it was o.k. to inhale from balloons and make everyone laugh! While it was in short supply! Must confess, didn't realise it was used for so many serious purposes though. You live and learn.
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It's good news for their economy. I hope it won't be exploited by unscrupulous multi-nationals.