Drones are key to protecting the Arctic where humans can't, but getting them to work in the cold is a challenge

Drones have big advantages in the huge and largely empty Arctic, but the cold also makes them hard to operate. COLE BURSTON/AFP via Getty Images The Arctic is a growing NATO priority as China and Russia expand their presence. Drones can cover vast terrain, reducing the need for personnel. Extreme cold and barren terrain limit drone performance and concealment. NATO needs cheap drones in the Arctic as the region becomes more contested and critical for security. But the region's harsh conditi...