This week a modern tragedy well within living memory.
John McCrystal takes you through the chilling Wahine disaster of April 1968 as it's the 50 year anniversary.
More than 50 people perished, and the death toll actually rose many years later.
Listen to the full audio above.
Weekend Variety Wireless with Graeme Hill, 8pm - midnight Saturdays and Sundays, on RadioLIVE and streaming live to the Rova app on Android and iPhone.