If a ship is at sea, headed from Bandar Abbas to Latakia, there's no way of knowing what it might be carrying.
And no authority under which it might be stopped and searched, much less its cargo impounded.
Certainly, we have the power to undertake such interdiction, but it is unlikely that we would break any international laws to do it.
Dead and wounded American soldiers laying everywhere, civillians blown to bits, and all we're worried about are some friggin' "laws" agreed to by a bunch of unelected bureaucrats at the UN?
SCREW THAT!
Jeez!