David Schaengold responds to Manzi:
The central moral evil in interrogating someone by means of torture is that it overrides the victim’s moral agency. That is, the whole point of the exercise is to render the victim incapable of moral self-governance, so that your will, the will of the torturer, becomes entirely sovereign. This is intrinsically wrong both in Aristotelian/Thomist thought and the various moral philosophies derived from Kant.
The Dish 