Here is where we do not really Know. Who is telling the truth? Or an exaggeration of the truth? Every Administration! Who had to work with these two countries. Should know that restrictions do work. Only to a point! No country! Will listen to what others tell them. This is so very normal.
Because it does interfere with what that country wants, can & does do. Would U.S. want sanctions put on them? I think not! But we ourselves! Do not want any wars either.
If these two countries are doing “self-preservation” or “self-protection” “National security”. Then why not? Perhaps! With inspections from time to time. But both parties have to be open and as one in agreement. But! Here again! What if’s abound!
It still! Ends up!
A “spy Vs, spy! Right out of mad magazine cartoon strip! Only! This is nothing to laugh/joke about. The odds and risks are a way to high to take lightly!