Drones can overcome these problems. You can fly them low without fear of losing your life. You can study your target carefully instead of reacting in the heat of the moment. You can watch and guide the missiles all the way down. Even the substitution of missiles for bombs saves lives. Look at the data from Iraq: In incidents that claimed civilian lives, the weapon with the highest body count per incident was suicide bombing. The second most deadly weapon was aerial bombing by coalition forces. By comparison, missile strikes killed fewer than half as many civilians per error…

You can argue over which of these counting systems to believe. But the takeaway is obvious: Drones kill a lower ratio of civilians to combatants than we’ve seen in any recent war. Granted, many civilians in Iraq, Afghanistan, and other such wars were killed by our enemies rather than by us. But that’s part of the equation. One reason to prefer drones is that when you send troops, fighting breaks out, and the longer the fighting goes on, the more innocent people die. Drones are like laparoscopic surgery: They minimize the entry wound and the risk of infection.