Animal Planet started a show a short time ago featuring Sea Shepard's attempts to thwart Japanese whalers. Some of the stuff they do makes you wonder whether some of them are missing a few important parts, especially the founder.
http://animal.discovery.com/tv/whale-wars/
Personally I think anyone sailing under a pirate flag should be shot, regardless of the whaling controversy. I'm against rampant whaling of endangered species but I think the cultural aspects and considering that the minke whale is at the moment a viable food source (to a certain extent) means they're in the right... but I figure as long as you have someone pestering the whalers it'll help to keep them from over-hunting whales in general.