The dramatically changing moods of the sea mean that maritime disasters are sometimes inevitable. But when the roll-on roll-off car ferry The Herald of Free Enterprise lurched to port in calm waters just outside the Belgian port of Zeebrugge and capsized within a minute there had to be other reasons. What emerged was a trail of errors that led to some of the most far-reaching changes in ferry safety regulations.
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Ready to Watch Great Blunders of the Twentieth Century, Season 2, Episode 19?