Dan Williams

It's not a full closure.

It is indeed imposing U.S.

military control, U.S.

military might over that waterway.

The question is, will the Iranians rise to this challenge by perhaps

trying to run that blockade or encouraging ships that they deal with to run that blockade, which could actually draw American fire.

What Trump appears to have done now is turn the tables, basically announcing that it's free traffic for all or free traffic for none.

This American blockade would apply to ships that call in Iranian ports.

Other ships would not be stopped, presumably.

Also, ships carrying aid, humanitarian goods, would be allowed through after inspections, it would appear.

It's not a full closure.

It is indeed imposing U.S.

military control, U.S.

military might over that waterway.

The question is, will the Iranians rise to this challenge by perhaps trying to run that blockade or encouraging ships that they deal with to run that blockade, which could actually draw American fire?

Everything flows from that.

If you'll pardon the metaphor, that is really where the U.S.

and much of the West and much of the world is.

is watching to see whether energy traffic is freed up.

And if that is successfully freed up, perhaps as a result of the talks tomorrow, we may see other elements of the deal coming together very quickly.