Drone footage of Japan destroyer Izumo reveals security hole

TOKYO -- A viral video purporting to show overhead drone footage of Japan's largest destroyer has raised grave concerns about the ability of the Japan Self-Defense Forces to detect potential threats.

The footage of the JS Izumo was first posted on Chinese video-sharing platform Bilibili. Japan's Defense Ministry said May 9 it has determined the video appears authentic and that a drone likely flew over Yokosuka naval base to film the destroyer.