Re Iran, one report stated that the river was 1 mile wide at that point, that the border went up the middle and that the Iranians had stated that the boats were 1/2 mile into Iranian waters. That puts the Marines sunning themselves on the Iranian beach by my reckoning.
Re parading the captives blindfolded on TV, we should have known that this would happen as soon as the Coalition forces released video of Saddam having his mouth and beard examined by American medics. The Gulf states tend to regard a humiliation on one of them as an insult to them all - especially when Americans are involved.