How many people have died from bad code, thats more worrying.
Look at it this way, if the US had had drones during the VN conflict, the US would not have incurred 50,000 casualties and the VC would not have suffered ~2,000,000 casualties. We'd have gone after the Võ Nguyên Giáps of the conflict.
It's not like the government is using machine learning to categorize likely terrorists and then blowing them up in their homes.
2. you're probably over-simplifying the actual process in which we algorithmically identify and eliminate terror threats. which i'd bet for all intents and purposes is just as scary.
my point here is that you, like you identified of your parent's post, are operating under quite a few assumptions.