> You can also get around that with self programmed drones, but they are more limited in adaptability.
For now (perhaps).
My android phone for 300 quid has more computing power than my fast desktop had 20 years ago in about one hundredth the power budget with a powerful high speed network connection.
And which is becoming easier to create P2P distributed systems that could mesh together over prepaid and falsely registered connections.
Obviously this would require serious sophistication (not just anyone could string it together), but I think that anyone capable of being the first to build a serious threat with any of this technology will likely have funding and serious skills on tap.