bahn
Bahn 'drone' helicopter to hunt graffiti vandals
The writing is clearly on the wall for illegal graffiti artists, as Deutsche Bahn (DB) plans to deploy unmanned mini-helicopter drones to film, track and hunt them down, it emerged on Sunday.
The writing is clearly on the wall for illegal graffiti artists, as Deutsche Bahn (DB) plans to deploy unmanned mini-helicopter drones to film, track and hunt them down, it emerged on Sunday.