Helen Greiner (L), founder of CyPhy Works, and John Dodero, UPS vice president of industrial engineering, talk about the CyPhy Works drone which carried a UPS package to Children's Island off the coast of Beverly, Massachusetts, U.S. September 22, 2016, during UPS's demonstration of a drone making a commercial delivery of a package to a remote or difficult-to-access location. REUTERS/Brian Snyder