THE WAGES OF IRANIAN OIL SMUGGLING:

Iran has proved resourceful in the past when it came to finding new ways to smuggle oil, but the Americans now have decades of experience dealing with Iranian ploys and it has become more difficult to come up with new ideas, given that so many of the most effective sanction evasion methods have been neutralized or made much more difficult and expensive to use.

A long, detailed post that is worth the read. The U.S. sanctions employ the military, diplomatic and economic elements of power. Washington is serving Tehran a well-mixed power cocktail from Hell, to coin a phrase.