It's a bit absurd to describe all the procedures Iran takes to disguise those ships. It's not like it is hard for the US military to track massive tankers in a small sea (or to intercept them if they wish to). Those tankers are tolerated by the US because they don't want to antagonise China more than they need right now (not the least to keep them out of this conflict), and don't want to add more pressure on the oil market. Not because somehow those ships evaded US vigilance thanks to Iran's cunning skills.

But this is a damocles sword hanging over Iran. The US could seize those tankers if they want to apply more pressure.

And by doing so escalate more and potentially lead Iran to hit critical infra across the gulf nations and potentially disrupt red sea shipping too. There is too much exposed, expensive and delicate infrastructure to adequately protect. Iran could likely cause far more damage than it already has, and to infrastructure that could lead to years, or even decades, of problems all at a time when oil is starting to wind down. The gulf nations know this. This could transition oil earlier than expected. Hit their oil infra, and their water infra and the region may not recover until oil is no longer in demand. Nations are likely taking notice of how cavalier the US is being with other nations security and prosperity right now. Spain is getting down right hostile and we have a lot of military assets there and along history of joint bases with them. This is potentially a major turning point for supporting the US in any endeavor. Basically, yeah, I am sure we know where those ships are but hopefully we are being as rational as possible somewhere in the government and are holding back in hopes of -something- being salvaged here.

In the past it had less to do with seizing the vessels and more to do with keeping financial flows between organizations offering shipping services and oil hidden from the banking system. America could have easily seized any ship they wanted to during the sanctions over the past decade. They didnt because the sanctions are American constructs: they dont apply on the open seas where UNCLOS matters. America can still seize them, but the legality is murky and comes with a reputational cost.

Now with Hormuz closed, America needs every last oil barrel moving so the economy doesn’t grind to a halt. Remember, it’s a war of choice for the US. We don’t need Iran gone as much as we want low oil prices.

> not like it is hard for the US military to track massive tankers in a small sea

We're not hitting their tankers for the same reason we are suspending sanctions on Russian oil. It's a desperate bid to keep prices at the pump down.

Agree it's a thin disguise. It works because the same sword hangs over Trump's head as well. He needs the price of oil to not spike too high so any oil supply is welcome.

> Not because somehow those ships evaded US vigilance thanks to Iran's cunning skills.

Well.. we can't have America look bad. What would that do to the DOW?

> because they don't want to antagonise China more than they need right now

So, it actually does sound like Iran is pretty cunning here.