I have to agree with Whirl on that one , Humans cant be trusted , we would like to think we are above natures laws , but in the end , we are animals to . The best deterrent to violence is the threat of overwhelming violence . Predators have a strong self preservation instinct , and when shown that they will come to bodily harm or death , they suddenly become civilized , and obey a societies rules to avoid it . But thats not enough , you not only have to show that you are capable of it , but more importantly , absolutely willing to do it ……..then you have their attention . Human nature will undo all things ……….that is also why one world order , one world government will fail ……..that only works in Star Trek .