So yes, they can probably afford to have a bunch of people tweak knobs in a factory all day.
But what would prevent this system from being compromised?
Seems pretty easy for an adversary to "inject an exploit in these controllers" by paying a few of them to keep the knobs in the wrong position for a bit more time than strictly necessary, or to flip a switch earlier/later than ideal.
Auditing this is seems worse than checking the code for an old-style, non-networked, PLC.
In the US, I can’t afford a full time maid. In India, I could probably afford 10.
Or more pointedly, in the US you can afford a car far earlier than you can afford a maid. In India, it’s the opposite.
An interesting aspect of poorer economy I’ve noted but haven’t seen anyone discuss otherwise is you can live a much better life being poor in India, than you can in the US — the really low income economy is far healthier (the quality of everything degrades continuously). I’m sure it’s not a novel insight, but I don’t know what others would call it.
In the US you pass under the minimum wage bar of value production and you’re immediately in a tent under an LA bridge — with everyone else ranging from $7.99/hr to $0.01/hr. Of course an economy exists to support them anyways, but it’s largely underground, illegal (bypassing safety and regulations, e.g. selling very old cars; selling cigarettes individually) and actively zoned into oblivion
It‘s why, for example, middle class households in the US don‘t have live in maids, because rising living standards made that unaffordable at a middle class income level.
So the idea might not work for Iran, but it probably would for North Korea.
Why not?
Legend has it that Stalin knew about the American bomb before Truman knew about it. Hiring literally thousands of high-schoolers without much job training has the advantages of being cheap back then, but you don't really know who was or wasn't a Soviet Agent.
Similarly: having literally thousands of modern techs build a bomb manually would only turn the computer-security problem into a human-security problem. Who do you trust? Who do you keep track of?
There's something to be said about trusting fewer people: and checking those few people more vigorously. That simplifies the human-security portion of the puzzle, even if it complicates the computer-security portion.
By enlisting thousands of young women to watch the knobs and dial buttons.
https://outrider.org/nuclear-weapons/articles/women-who-buil...
They didn't even know they were building the bomb. They just had to enter the room, dial knobs back-and-forth for 8-hours/day, and then go home.
Today, that sort of stuff SHOULD be automated. It made sense back then because there weren't computers, but... you really can't just get people to balance knobs 8-hours / day anymore.
-------
EDIT: https://www.energy.gov/articles/five-fast-facts-about-calutr...
Seems like Department of Energy has some historical articles on them too.