Drone crashes and sinks into popular Yellowstone hot spring

A tourist at Yellowstone National Park accidentally crashed a drone into one of the park's most popular hot springs on Saturday. Drones are banned at all US national parks, but the blanket rule hasn't done much to stop visitors who are determined to capture amazing scenic views from the skies. Unfortunately, the Yellowstone incident is a perfect example of what can happen when operators lose control make mistakes, and it won't do anything to help more considerate enthusiasts plead their case wit...