When Jeff Bezos went on 60 Minutes and mentioned that Amazon was experimenting with delivery drones, we knew it was only a matter of time before other companies revealed similar plans. And, one day later, sources at UPS have told The Verge that the delivery giant has its own unmanned flying couriers in the lab. Publicly, the company is largely keeping silent, saying only that the commercial use of drones is an interesting technology and well continue to evaluate it.