Drones are no longer the exclusive domain of the military, or even the state.
As they become more and more common in civilian airspace, so do concerns about law and policy, where serious debates are taking place at New York University's law centre.
Drones mounted with cameras, whether used by law enforcement or journalists, raise issues of privacy.
There is also the issue of liability, where the law is still catching up with technology.
Al Jazeera's Kristen Saloomey reports from New York.