Craft sighting related to protection or surveillance of niaki missile base?

Viewing UFO panel discussion on Larry King Live July 13, 2007, compelled me to make this report some 39 years after the fact.
 In August 1968 while working at Boy Scout Camp Benjamin Hawkins, Byron, GA, two fellow scouts and I spotted a craft in the night sky.  The craft produced a sound much like a very high-speed electrical motor, shrill and almost inaudible.  Its shape was that of two bright silver/white saucers placed face to face with a row of clear lights around the center much akin to windows in a commercial jet.  The lights seemed to revolve very rapidly like a gyroscope.
 The craft hovered approximately 300’ directly above our heads and seemed to place us in an electrical field, because for a brief time we could not move our bodies.  After a few minutes the craft began to move very slowly to the southwest toward a Niaki Missile base which bordered the camp property.  Just as it reached the tree line it banked slightly and disappeared in a split second, never to be seen again.
 The Niaki Missile base located in Byron, GA is just a short distance from Robins Air Force Base, Warner Robins, Georgia.
Witness indicates that the date of the sighting is approximate.  PD