Sen. Lisa Murkowski @lisamurkowski
Unmanned aerial systems are game-changers for Arctic research and development! https://t.co/gPZGFifkqe — PolitiTweet.org
National Geographic @NatGeo
When the weather is bad and civilization distant, the best way to survey nature may be with an unmanned aircraft. https://t.co/j8uuLw6Lu3