Nuclear weapons are restrictive because the enrichment process is difficult.
Biological weapons are restrictive because the cultivation process is difficult.
Drones are easy, machine learning is becoming more approachable for every person in civilized society.
Better to make a counter-drone-swarm technology company than worry about what regulators are going to do when a terrorist cell starts to manufacture killer drones - you cannot stop that with regulation, you can only stop that with your own drone swarm.
This is a new age of war, and if free society is to stand a chance it needs to develop and research countermeasures for this sort of stuff - classification and regulation is meaningless as deterrence.