[LucianOfSamasota]

I like to think they blew themselves up?

Oppressive dictatorships seldom inspire great achievement or superior performance.

[Jimmy Valentine]

That whole red wire, blue wire thing again? Achmed is colorblind.

[UCANSEE2]

I like to think they blew themselves up?

After reading the statements given by 'authorities' in the article, I'm pretty sure you are correct. Workplace accident.

Back when the US was trying to develop a nuclear weapon, there were some 'workplace accidents' as well. While these were from inexperience, the Iranian explosion was probably caused by ineptitude.