Former Shark Hunter talks about protecting the Great White shark

The Great White shark's been protected in New Zealand waters now for more than a year, and despite critics fears, so far there's been no increase in attacks. But when they do bite it always leads to big headlines and an even bigger bloodlust to track them down and take revenge.

20/20's Pete Cronshaw talks with a former hunter turned protector - a man who was nearly killed by the sharks, but now wants others to see them as the harmless creatures he believes they are. And he catches up with a man who believes he's invented a device that will keep all of us safe at sea.