The shipping industry has been warned by a leading maritime lawyer that it may soon face its “Deepwater Horizon moment” in the event of a mega containership casualty. Recent high profile container ship casualties have involved relatively small vessels capable of carrying up to 4688 containers (MSC Napoli). The Rena, which is currently breaking up off the coast of New Zealand, has a capacity of 3352 containers. By comparison, the largest vessels sailing today are carrying over 15000 boxes.