The Iranians are going to milk this for as long as they can. Newt had the right idea. Warn them their only refinery will be destroyed if they are not released. The 15 are in grave danger. And intellegence can't find where they are at? Briton is getting some moral support, but the crap Pelosi and the dems are pulling now is making the situation much worse. I'm very concerned about where this situation and the US are headed.
This is obviously the case for even if the Brit's (they weren't) in Iranian waters, the lack of national concern because of it would justify at the most a statement of "Hey watch yourselves and don't let it happen again".
Of course, it's only a political ploy by Iran to vent their frustration with unanimous voting to stifle their nuclear aggressions in UN vote.
I seriously doubt that if Britain were to threaten Iran it wouldn't be with a rubber dingy with 16 soldiers.