@Junko -- now you have me doubting myself -- I just did a search and found this article http://pingmag.jp/2008/03/13/taxi-lights/ but this is totally different -- maybe someone in Japan was having a joke with me when they told me about these lights
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.