The controversial devices, which could be useful for everything from firefighting to journalism to deliveries, are getting a PR makeover.
Agricultural groups experiment with unmanned vehicles to manage crops.
The handheld Control Display Unit (CDU) has been successfully trialled by Northrop Grumman and the U.S. Navy.
Engineers at the University of Southampton in England create an unmanned air vehicle from parts printed on a machine.
The Federal Aviation Administration is looking to develop futuristic aircrafts that can fly on their own.