Since you've brought up drones and smart bombs: What constitutes a war crime is a highly ethical and contentious issue with many people disagreeing on the exact

Since you've brought up drones and smart bombs: What constitutes a war crime is a highly ethical and contentious issue with many people disagreeing on the exact scope. Yet, we've managed to write laws about it and get court decisions. Even if we want to, some things in life cannot be neatly packed into correct/incorrect categories. And the process alone of discussing whether smart bombs and killer drones should be build is helpful in shaping decisions on how exactly they will be build or not.