We absolutely can, we absolutely should, and we absolutely have been doing that.

When I get on a bus with other people, I can, with a fairly high degree of certainty, rest assured that the other passengers will not just randomly kill me to get something from me. That's because the people, just like me, have some level of comfort and their basic needs being met.

The further we slide away from that, the higher the risk for everyone. And to maintain that needs constant work, from everyone.

You both agree. What keeps someone from killing you on a bus is a combination of norms, morals and deterrence. The same apply to drone murder.

Norms and morals apply almost equally to murder by drone versus e.g. poisoning someone. The difference is largely in deterrence, i.e. having a clearly-communicated capability to find anyone who tries to pull this off.