'Fair enough.' I put the chemicals back on the bar and regarded him gravely for a couple of seconds. 'Then let me tell you something instead. When they make an Envoy, do you want to know what they do? They burn out every evolved violence limitation instinct in the human psyche. Submission signal recognition, pecking order dynamics, pack loyalties. It all goes, tuned out a neuron at a time; and they replace it with a conscious will to harm.'