Consider the Manhattan Project. Linky
The project started in 1941 based on research underway since 1939. Two bombs were dropped in 1945. That was a four year timetable.
Consider also that the hardest part of that project was the question, "Can it be done?" That is one of the hardest questions in Science. Once you
know the answer to that one it becomes, "How is it done?" The First question was answered for the entire world in 1945.
Now consider what things were like in 1941.
No cordless drills! No CNC. Everything was hand made using lathes and other equipment that required very skilled labor.
No calculators. Everything had to be calculated using paper and slide rules.
Explosives were limited, even C4 was not invented yet.
Not a single transistor, just valve technology.
And yet, in four years the US built three devices!
Compare that to today.
Back in 1975AD I learnt the basic equations for nuclear weapons in year 12 Physics. Yes in high school. If it was not for a flood in 2010 I would
still have that book with all the formulas.
Computers / calculators / CNC machine shops / Centrifuge separation machines / Modern explosives / Micro electronics / sensors ...... the list is
near endless. Plus, we know it can be done and we know how it is done.
I keep reading thread after thread about this country or that country developing Nukes and how naughty it is and how they are always close after a few
Get real! If the US (Using Europe's smartest scientists) could do it in four bloody years back in 1941, it is just stupid to suggest that North
Korea or Iran or any other country that wants one could not do so in a whole decade.
Iran does not have to import the centrifuges, she can manufacture her own. She may have done that three decades ago.
All of that is beside the point that we do not know how many Nukes were sold on the black market after the fall of the USSR nor do we know how many
Nukes or Nuke tech has been sold around the world, well, except for Israel selling to South Africa.
It is not that difficult for a stable country to develop. If Iran wants them, she would already have them and probably quite a few by now.
Please, consider that all this talk is smoke and mirrors.