The Royal Mail Ship, Empress of Ireland, was an ocean-going luxury liner on her way to Liverpool from Quebec City when she sank in the Saint Lawrence River, 14 minutes after colliding with a Norwegian collier in the early morning fog of 29 May 1914. She had 1,477 people on board—passengers and crew—and the accident claimed the lives of 1,012, more than 800 of them passengers.

The shark is an apex predator that has been on this earth for over 400 million years—a predator that, through the media and our deep-seated fears, has been systematically targeted and hunted throughout the world's oceans, pushing many species close to extinction.

You might know Doug Allan because of his spectacular cinematography. In his 30-year filming career, he’s been involved with over 60 films and series, and has worked for BBC, Discovery, National Geographic and many others, filming on series such as The Blue Planet, Planet Earth, Human Planet and Frozen Planet.

In many cases, there is actually no plan to deal with a DCI incident. The rationale given runs along the lines of, “It hardly ever happens, so it is not worth thinking about until it does.”