While I don't mourn the death of a top Iranian nuclear weapons scientist on the merits, the manner of his death is deeply troubling. Mohsen Fakhrizadeh was assassinated by a remote-controlled, AI-assisted machine gun. It was undoubtedly a given that such an event would happen sooner or later, but it is nevertheless a horrifying precedent.
The advent of remote control assassinations is the immediate concern, and that is plenty bad enough. But imagine what kind of carnage could occur if one, or a few, of those were let loose in a crowded public assembly?