Video released by Russian sources shows how a small group of Russians are using a video transmitter to override drone video feeds in their area. If this is as successful as they claim, then they've effectively made all drone pilots in range flying on the same frequency as their transmitter blind, and on top of this, they've enabled themselves to intercept the video feeds of all drones within range, which could prove devastating for the drone pilots that are flying short range reconnaissance drones that have to return to their position at the end of a flight.