I've been reading the posts and thinking on this. The conclusions I've come to may seem atypical for me; I have some points that might seem contradictory at first glance:
1. Piracy is wrong, period, and it needs to be stopped.. It is theft by threat of deadly force. Attempts to justify it are excuses for immoral behavior. It is not merely retaliation for unlawful fishing, since there is no indication that Somali pirates confine their piracy to ships of nations that are guilty of illegal fishing/dumping/etc. Greed appears to be the chief motivating factor.
--1a: those attempting to commit theft by threat of deadly force are morally subject to being killed in the act, imprisoned if caught after the fact, or killed after-the-fact if catching them is unworkable. The reasoning is that theft by threat of deadly force not infrequently ends in death for innocent victims. If I am not mistaken the Somali pirates do occasionally kill someone.
2. Desperation, starvation and extreme poverty DO tend to lower almost anyone's moral standards a bit. There was a time in my younger days when I felt the bite of desperation and didn't have the money to buy food. I hunted anything edible, rabbits, squirrels, whatever. I swallowed my pride and went door to door asking if people had any work that needed doing they'd pay a little something for, so I could buy my wife her meds and maybe get a loaf of bread and some vegetables to go with whatever I shot that day (if anything). I didn't resort to immoral behavior like theft but I felt the temptation... and most Somali's live in poverty and desperation far and away worse than what I experienced. Furthermore I assumed I would find work eventually and my desperation would end (it did, of course)...for the average Somali there is no end to their desperate poverty but death.
--- Similarly, I know honest people who live in the 'hood, next door to a known drug dealer. They don't like it, they don't like the types that come and go next door...but they have no means to move and they're too scared of retaliation against their self/family/children to turn informant in hopes the cops will intervene.
This gives me a certain sympathy with the plight of the coastal villagers. Poorly armed (if at all) compared to the pirates, they surely fear to cross them, and if trading with the pirates means the difference between their kids starving or not, I can see that. A parent whose child is starving has a hard time seeing any higher moral good than feeding their child whatever it takes.
Now there's the question of whether shelling coastal villages known to harbor pirates would actually result in a decrease in piracy. The answer to that is "I am not sure." It might.... or the pirates might take to hiding their boats in more secluded places away from villages, who knows.
If we bomb those villages, there is no question we will inflict "collateral damage" on people who are effectively innocent of any real crime... other than being too powerless to do anything about the pirates among them, and possibly too desperate to feed their kids to refuse to trade with them. If I had more confidence that bombing those villages would actually end Somali piracy, I might think it was worth considering... but as it is, I don't think that large-scale death of fishermen, women and children can be justified when the outcome is uncertain, and the "complicity" of the villagers debateable. Notice I didn't say the villagers were innocent, just that their degree of willing complicity was questionable. The very very poor often find their options and ability to affect their community to be highly limited.
In conclusion, I think we should take every reasonable measure to stop piracy at sea, including a multi-pronged approach of arming merchants, hiding SEAL/etc teams on some ships, using warships to patrol and convoy methods, Q-ships, and blowing pirates out of the water when we identify them.
However, under the current circumstances and given what info I have available at this time, I just can't justify shelling those coastal villages.
G.