Tiger, I will agree that any dog with such a heightened defense drive should probably be passed over although it can be done with enough training...People got to remember that these are still dogs and while it may be harder to teach them certain things it is most def. not impossible. BTW training to bring out drives and pp stuff starts way earlier than 1 yr old.. it usually starts at 6 mths. the dogs that the military or even police get are already "started" before the broker even gets them, that is partly how they are chosen.