>>1468527 (last bread)

My 2¢

NK was missile testing grounds.

Anything Iranians tried testing (facilities included) would have been taken out by Israel.

Another factor is that DS used scientists/engineers/techs from countries that have rolled back in-country nuke facilities.

Those were the entities involved with the 'inside stuff' financial schemes that are part of the JCPOA.

Just my thoughts adding to what you said; I think you're pretty much spot on.