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unhappy people get used as reactor shielding.

No, but according to the Wikipedia article it sounds really interesting. I'm a sucker for exactly the sort of dystopia fiction where happiness is mandatory and being unhappy gets you shot.

Break out the Soma pills! (The "Brave New World" variety, not carisoprodol). Maybe we are already there, given the amounts of pills prescribed to people who aren't depressed in any clinical, dangerous way.