Test programs around the world that use the technology for lifesaving pharmaceuticals as well as for food and even coffee are attempting to prove that delivery by drones is not only safe, but efficient and environmentally sound.
— Read on www.nytimes.com/2019/03/19/technology/drone-deliveries-faa-pilot-programs.html

*Drones are a future technology area to study. See lots of opportunity for people with multiple knowledge bases that relate to drones. A few areas are geography, human population density, legalities related to airspace, and the allocation of scarce resources.