Palestine

[Anomalocaris]

No, between the fighting parties.
Any nuclear business will be caused by  the U.S and Israel; period.

If fissile materials ever falls into the hands of any terrorist organization(s), it will almost certainly be formerly Soviet materials and you're an absolute fool to believe otherwise.

I think any nuclear business will most likely be radioactive material seized or stolen from academic or medical establishment and made into a dirty bomb.