By Conor Shine Las Vegas Sun
They can fly, swim and even walk, carrying cameras or cargo long distances through often-treacherous terrain.
The military has researched and used unmanned vehicle systems, commonly known as drones, for 40 years in faraway war zones. The vehicles have begun crossing over more and more into the civilian and commercial realms, where proponents say the technology has the potential to save lives and keep workers out of harm’s way.
But the devices, which often are small, portable and relatively affordable, also are uniquely suited for surveillance, leading some to worry about potential misuse and invasion of privacy.