We as pitbull owners should know what its like to get your dogs judged by people who have no idea what they are talking about, therefore my statement. English is not my native tongue, so forgive me if sometimes my points aren't very clear.
If you live in an area with dangerous carnivorous that are a threat to your dogs, first priority should be to keep the dogs protected in kennels. Period! Thats basic horse sense to me. Guess further discussion on the topic is unnecessary since if kept in kennels they aren't threatened anymore. But if bently would need a breed of dogs to protect him, his family or his animals from dangerous animals there aren't a better breed for the job.