Fotokite is a drone-on-a-string. The unmanned aerial vehicle can be guided simply by the tug of a string. Inventor Sergei Lupashin explains how it works.
Andreas Raptopoulos of Matternet is attempting to create a network of drones that operate like the Internet, only for tangible objects.
Marc Goodman
 of the Future Crimes Institute and Singularity University shares his thinking on the promise — and threat — of drones.
