The drug lords of Detroit bred nasty, big dogs to each other and ultimately someone decided that this should be a breed. The ultimate vanity seems to be that this "breed" is named the same as the kennel that promotes it. The marketing ties the dog as being the preference of those who have low-riders. To say that there is minimal information regarding the dogs temperament, health, standard or other fundamental information is to be generous. Instead there is simply hype that they are "the best" and bred "to guard" (which is fundamentally a trait that is trained). Anything they might be born with is more a weapon that must be properly maintained. A "protection dog" is only as good as its training. Otherwise it is merely a very dangerous animal regardless of breeding.