I think this is a really important discussion, and there are a lot of different aspects, making a simple solution hard. If we always attempt to capture instead of kill terrorists, and then we have to detain them, does that cause more or less terrorists in the future? Or do we capture, put on trial, and possibly execute (and if so, what happens if we pass legislation to ban executions). Or, as we generally do now, do we just kill known terrorists?
After you step beyond what's humane for the person, the question of what's humane for society looms (and at that point, we have to consider who's society we are talking about). It's obviously more humane for the individual if we capture instead of kill outright, but if that's noticeably worse for society through negative externalities (I'm not trying to assume, just posing the question), then is it better or worse?
After you step beyond what's humane for the person, the question of what's humane for society looms (and at that point, we have to consider who's society we are talking about). It's obviously more humane for the individual if we capture instead of kill outright, but if that's noticeably worse for society through negative externalities (I'm not trying to assume, just posing the question), then is it better or worse?