In one of the most unusual videos ever posted to YouTube, a UFO flashes a spotlight toward the ground as it hovers over Mexico City.
The video, lasting just eight seconds, nonetheless manages to be one of the spookiest ever posted. It's easy to say that this unidentified flying object is a helicopter, but the signature and configuration of the lights around the hull don't seem to match up with any known conventional aircraft.
To read more and view the video, click here.