Over the last decade, unmanned aircraft systems (UAS or “drones”) have become a regular feature of American life. We use them for recreation, for research, and for commerce. But the proliferation of this new technology has also introduced new risks to public safety, privacy, and homeland security. Malicious actors have increasingly used UAS domestically to commit crimes, conduct illegal surveillance and industrial espionage, and thwart law enforcement efforts at the local, state and Federal level.