XBOX 360 2648
You seem to only be considering things that are easy to move.
No. If they can't make the materials consistently, as is only feasible with large plants, then you have to buy it from outside and that exposes you to all sorts of scrutiny. Those selling you the goods unlawfully already have questionable scruples so there's no certainty that they won't be informing on you via back-channels in order to avoid prosecution while still making a nice profit.
XBOX 360 2649
There are two modes to building what we learned as ABC-weapons; now known as WMD. The first is in "person mode". They don't have to work all that...
Well a nuclear research reactor isn't something that you cart about in the back of a SUV. Not the sort of reactor that you'd use to breed plutonium of more fissible uranium to use in weapons.
XBOX 360 2650
Nitpik. It's not just a rogue state. A culture that has no value on human life will also not care about clean weapons. When that...
People in the vicinity would tend to drop like flies due to radiation sickness without significant (hundreds of tons) of shielding.
There are about a dozen know steel manufacturers in Iran. Some recycle steel alloys that have the potential for use in weapons - or refrigerators or motor vehicles.
Research into ANY modern technology can be misappropriated for WMD. -- "Bernd Felsche - Innovative Reckoning, Perth, Western Australia ASCII ribbon campaign "Laws do not persuade just because X against HTML mail they threaten." and postings Lucius Annaeus Seneca, c. 4BC - 65AD.