Sea Shepherd Conservation Society
Thoughts? They're the group of anti-whaling activists that are featured in the Animal Planet show Whale Wars.
They hunt down whaling fleets and attempt to slow/stop their whaling by harrassing them or disabling the ships.
I agree with them, as what the whalers are doing is illegal under international treaties, and if no government enforces the law, non-government entities have the legal right to step in and prevent this from happening.
I think in a year or so(when I'm more fit and done with my current degree) I'm going to apply to go on a campaign with them.