Martin Jacobs reports that Dr. J. V. Retief, Senior Scientist of the National Nuclear Research Center of the South African Atomic Energy Board requested permission to visit an Army Corps research facility, the Cratering Group Research Labratory at Livermore, California. Jacobs was concerned that "there might be political repercussions if it appeared the US was assisting South Africa to produce nuclear explosives as a prelude to weapons development."
