I just posted on the Iran war thread about this. I have not even read the news yet, but just going through the posts there ,WTO was going through my head.
He can't publish details, because in dark paper filled rooms around the world there will be trade experts sat with their pen poised above the " World Trade Organization Complaint Forum 101". Or whatever it is called.
Now, so far as what the WTO rules are, I have no idea. It is all well beyond my ability.
WTO | WTO legal texts
I reckon if Printer girl was to print out the WTO rulebook, she would need a bigger printer. And what a mighty tome that would be to be thrown at Bessent's head.
I am not advocating for political violence here, using a figure of speech.