A foreign graduate student has pleaded guilty to crimes under the Espionage Act for photographing classified US Navy ships with a drone. The case appears to be a first-of-its-kind prosecution by the Department of Justice.

Fengyun Shi, a Chinese citizen and graduate student at the University of Minnesota, was arrested in January after a drone he was flying got stuck in a tree in Newport News, Virginia. A suspicious resident called the police and Shi was questioned before abandoning the drone and fleeing. After the FBI seized the drone and pulled the images off it, investigators discovered that Shi had photographed Navy vessels at multiple shipyards in Virginia. One of those shipyards, in Newport News, was actively manufacturing…