i'm sure the US has used even more expensive means of killing a single person. i.e. cruise missiles, bunker busters, drone missiles
You're absolutely right. But, such operations were aimed at "high value" targets, such as Bin Laden and is ilk. I wouldn't waste such resources on these clowns - dangerous as they might be.
it's not actually the boat, but the pirates on it. send the message: pirates die real quickly, i believe that should put a damper on volunteer pirates.
Yes, something certainly needs to be done about them. The trouble is, nobody can really know which vessels are manned by pirates until they attack another vessel. Then, simply shooting them becomes more complicated.
I've been out of the navy for a few years, but I have friends and relatives who have been on anti-piracy patrols in that region. There are thousands of square miles of ocean to cover and hundreds of small boats at sea at any given time. It's impossible to stop and search them all. Besides, as soon as a pirate spots a warship, they dump their arms overboard and by the time they've been boarded, they've become simple fishermen.
You can watch them dump their weapons, but you still can't just shoot at them - that makes you a pirate yourself! Of course, if there are no other vessels in the vicinity, a warship's captain can order them blasted out of the water. However, with hundreds of crewmembers on his ship, he knows that
somebody is gonna spill the beans.
Perhaps merchant ships should all be required to carry the means of defending themselves. But, you know what happens then - some trigger-happy dough-head is bound to open up on an innocent fishing boat.
I'm afraid that "just shoot 'em all" is easier said than done.