Drone as metaphor

Michael Chertoff says Google Glass is like a drone:

“Now imagine that millions of Americans walk around each day wearing the equivalent of a drone on their head: a device capable of capturing video and audio recordings of everything that happens around them.”

Google Glass is a drone on your head. A security camera is a stationary drone. Conventional aircraft are drones with an on-board operators. Cameras are personally operated drones. Heck, an AR-15 is a personally operated drone. That makes as much sense as anything else pundits say about the AR-15. In fact, a pundit is basically a talking drone, apparently self-operated.