The skipper of the anti-whaling ship should be in jail and the ship seized and put up for sale. If he kills or injuries someone, he and all his "sponsors" should be liable for entrusting a ship to an idiot and his idiot crew.
Video from here.
UPDATE: Watson says the collision was because he was disoriented by the defenses used by the Japanese ships. See here.
There is some apparently argument that the acoustic device used by the Japanese is a military weapon. So? Ramming another ship is a military tactic and has been since men first went to sea - is it now a military weapon?