Eagle versus drone: Birds of prey trained to patrol the skies

For hundreds of years in the skies over Asia, people have used eagles to hunt down prey with deadly results. That tradition has been in decline for decades, but now the bird's keen eyesight, powerful talons and lethal hunting instincts are being used to take out a new kind of 21st-century vermin: drones. The animal v machine moment is brought to you by Guard From Above, which describes itself as "the world's first company...