As with chemical, biological, and nuclear weapons, it will/would be difficult to forestall determined people from getting their hands on them indefinitely — and probably more difficult than any of those cases since there’s indeed lots of dual use from drones, and you won’t (probably) fear for your life in building one.
Nonetheless I think there is a huge difference between weapons built by amateurs (and even by militaries in secret) versus an open and potential arms-race effort by major military powers. No amateur is going to create a drone WMD, and we can hope that at some level nation-state level anti-AW defenses can keep up with a much less determined program of AW development.
As with chemical, biological, and nuclear weapons, it will/would be difficult to forestall determined people from getting their hands on them indefinitely — and probably more difficult than any of those cases since there’s indeed lots of dual use from drones, and you won’t (probably) fear for your life in building one.
Nonetheless I think there is a huge difference between weapons built by amateurs (and even by militaries in secret) versus an open and potential arms-race effort by major military powers. No amateur is going to create a drone WMD, and we can hope that at some level nation-state level anti-AW defenses can keep up with a much less determined program of AW development.