Earlier quoted context omitted.
It's going to be an analogue of the situation with firearms today where the assailant has an asymmetrical advantage over civilians but not the countermeasure (police). Also, the US military has been stockpiling kinetic drone countermeasures for about four years now. The idea is you get a hardened, ~11 pound autonomous drone that slams into the target at roughly 90 mph and physically destroys it before returning home.…
The "unique" part is two-fold. 1. It's cheap. 2. It's anonymous. The fact that we haven't had more drone terror attacks says more about the technological slowness of terrorists than its infeasibility. And eventually terrorists catch up. (Probably after the Russia-Ukraine war ends and some skilled people from both sides are unemployed) It's infeasible to blanket every inch of civilian space with kinetic or EW anti-dro…
Also motivation and incentives. The reason we haven't seen many drone attacks on civilians is that it is far more lucrative to get civilians to buy your product than to kill them, and the companies that actually have the resources to mount a credible drone attack are making a lot more money doing the former.
Terrorism in general has always been far more overhyped than actually a problem - the median number of terrorist deaths per year in the U.S. from 1970-2020 is 4, making your odds of being killed in a terrorist attack significantly lower than being struck by lightning. And the reason is simply that it's deeply irrational. What do you have to gain from killing a random stranger?