If we are, in fact, alone in this universe, there are two ways to look at it. First, the way you concluded: "it would behoove us to take good care of each other and of the planet we call home"
From another perspective, in all of those trillions of stars out there, if we are alone, then we are such a small component of the whole as to be completely insignificant. We are a tiny spec of dust to brushed off and never thought of again.
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.