There have been increased siting of great white sharks on our Eastern coasts here. This might sound scary, but it's actually great news for our eco system, as explained in this article on Gizmodo. These animals need to be respected (I oppose cage diving with them) but that does not need we should slaughter them indiscriminately. They are neither pets nor monsters. Another conservation video worth watching here:
The Atlantic White Shark conservation project also do a sterling jov with conservation and education. They even have an app, Sharktivity, that tells you about sightings so shark and men can keep out of each other's way.