"Intel, spies, observation. One thing we don't do is indiscriminately harass or kill people."
The first doesn't work that well. The rest... well, if they stand to be counted with the enemy, they are also the enemy. There were a lot of innocent Germans and Japanese killed by our bombs.... Such is war.
Due to the limits fo tech, we had nochoice but to bomb everyone. Now we have no excse. It's not foolproof but for the most part we hit the bad guys and leave the innocents alone.