The was a recent case in Sweden where a zookeepr was killed by the wolves. The head of the zoo was confused he said that wolves weren't dangerous !
Whether they are in a zoo or in the wild they're not dangerous .He couldn't understand how this happened.
They are ,of course , predators and very efficient ones .Those zoo visiters were sometimes brought into the wolf enclosure where they could feed and pet them.
That's the problem , there are the tree huggers with Disney mentality and they often get into positions of authority.I don't know how to deal with them ,their ideas are so bizzare.
I didn't add a link becasue the zookeeper's comments are in Swedish and I had to get someone to translate.You could find the story on Swedish papers in English.