China Busts Smugglers Using Drones to Transport Smartphones

When drones started becoming performant and accessible, this was always a very real possibility.

As a counterpoint though, read this article on drones being used to smuggle electronics into North Korea. As far as I know, they are doing so from the South Korean border, not the Chinese border - for obvious reasons!

https://www.cnn.com/2016/05/25/asia/north-korea-drones/index...