Zipline is launching its airborne delivery service, starting in Mesquite, a suburb of Dallas-Fort Worth.The automated drones can load in seconds, carry small packages for miles, and deliver them with pinpoint accuracy using a retractable tether.Zipline has flown over 1.4 million deliveries, covering more than 100 million miles.This launch marks the beginning of Zipline's large-scale deployment after a decade of development.