Distributed by the Strategy and Policy Division (N51) of the Office of the Chief of Naval Operations.
This report continues to have relevance in today’s world. Among other issues, it discusses the “robustness” of existing nuclear weapons. There is also an appendix on the seismic verification of underground nuclear explosions.
Reliable Replacement Warhead (RRW) Correspondence: Nature 462, 158 (12 November 2009).