@spendius,
Has anyone else, when looking at a modern cruise liner (big, boxy, high profile, many upper decks with balconies) and indeed large container ships piled high, thought "that doesn't look very stable to me....." It only needs for something to go wrong, such as water in the lower hull (ro-ro ferries) for the whole thing to fail spectacularly.
Expect new design criteria to be issued after a lengthy enquiry.
).
