And rather, few people can control a dog that powerful once it gets serious. I very much believe that these dogs are peaceful and nice most of the time. But what about the times they are not? Who can hold them back and stop them? They were bred to not stop attacking, bred for incredible strength. They are not evil, they do what they were made for, but sadly that what they were created for is incompatible with a family dog.
So I read this article recently, and it suggested that some American breeders think there's specific issues with the breeding line of XLs that are bred in the UK.