How not? Precision kills with 0 warning. You can just bring one on a plane to whatever country and have the thing charge with solar/powerlines until your target is getting coffee outside on a nice day. Or whatever.

Ok, I'm not even sure what to reply here, that makes no sense and doesn't accomplish any of the things I mentioned. It's also not even particularly feasible and just not at all how any sort of wartime operation is likely to work at scale.

But I am sure of who I wouldn't put in charge of critical military operations.