"Put up a blockade, economy crashes, for everyone except the religous bug-heads at the top. After ten years they're locking radar on passing coalition aircraft and ships, etc. etc. Take out the bug-heads, and regular Iranians start killing each other en-mass.

I know I'm using creative license heavily here. But... could happen.

Why not just blow things up? "

Yeah, maybe a good idea.

Or why don't ask people by a promotion campaign if they want to be something like human shields to protect Iran. All the lefties who like to do protests on America streets could be flown to Iran and they can be their hostages. Will give them college credit and study grants. Send entertainment also- and condoms, lots of condoms.
If Iran won't play ball, have all these human shield people join of English military for a specific purpose of getting captured by the Iranian miltary. So instead having merely 15 soldier they can have 15,000 or 150,000 soldiers.