Frankly, I don't know. And in all the time they've been out there, there has been a relative sparsity of sightings and a complete lack of problematic incidents. And, still, the media needs to stir the mix.
People are responsible for their own fears.
The sad thing is that all too often these fears get the better of some. And stories in the media have a tendency to inadvertently fuel these fears. There is no fault on either side. But when people do get scared it can add a significant amount of unnecessary and unwanted stress to their already worrisome lives. If they could simply be located, temporarily immobilized, and transferred to a significant area of land where they could live and range freely without stirring public fears and worries, then everybody would be a whole lot happier.