Very bright beam of lightI recently had a conversation with ex-Marine friend, who related an event that occured on the island of Okinawa in 1995. He and his buddies were stationed to guard the motor pool one night, when a very bright beam of light approximately 20 ft in diameter, shined down on their location.There was NO sound, and because of the brightness, they could not distinguish any kind of vehicle. He reported the event to the OOD, and while waiting for his arrival, the beam of light decreased to approximately 8ft in diameter, and then turned off. The OOD upon hearing the obsevers sighting indicated that it was a relatively common occurance, as noted in a logbook.Can anyone verify the event, or have a similar experience?((NUFORC Note: Witness indicates that the date of the sighting is approximate. PD))