Torturing any human being is morally wrong, IMO.
There is a fine line between "stress and duress" and torture. Once you cross that line I would think that it would be very easy to continue deeper and very hard to cross back over and convince others that you wouldn't do it again - for any reason.
It could start with enemy terrorists and become an ordinary thing for anyone considered as a POTENTIAL enemy.
When dealing with an entity that commits cloaked military style actions, against unsuspecting civilian targets, you are no longer dealing with Human Beings, you are dealing with Animals.
They may look human, but their actions say otherwise.
And as I Pointed out, it is inhuman to let concern for an animal like that cost the lives of innocents.....