[happygrl]

I read about this a few years ago in a book entitled "The Gold of Exodus" by Howard Blum, Simon & Schuster. The non-fiction book describes two sleuths who believe that the real Mt. Sinai is on the Arabian Peninsula and set out to find it. While wandering around in the wilderness, they stumbled across these facilities. The story uncovered was that it was a communications network installed by U.S. companies, but upgraded by the Chinese to a missile defense. I couldn't determine the reliability of the story then. Now it seems that the book was accurate.

[Adrastus]

BTW, that was a part of an air defence system called "Peace Sheild." As far as I know about all that came of that site up by Tobuk was the fencing off of a tall jibbel (Jibal Musa, as it is known by).