The memorandum describes a difference between President Carter and the West Europeans over their commitment to limiting reprocessing and plutonium supplies for R&D work on breeder reactors.

This lengthy report was State Department Bureau of Intelligence and Research's contribution to the first National Intelligence Estimate on the nuclear proliferation, NIE 100-6-57. Written at a time when the United States, the Soviet Union, and the United Kingdom were the only nuclear weapons states, the “Fourth Country” problem referred to the probability that some unspecified country, whether France or China, was likely to be the next nuclear weapons state. Enclosed with letter from Helmut Sonnenfeldt, Division of Research for USSR and Western Europe, to Roger Mateson, 4 June 1957, Secret

To help Kissinger prepare for a follow-up discussion, ACDA and State Department officials prepared a "Non-Proliferation: Strategy and Action Program” to help guide policy. A key proposal was for “high level political approaches to key exporting countries to enlist their support for safeguarding transfers of nuclear materials.” While Washington had to approach a number of nuclear exporters, consultations with France “constitute the most crucial and urgent step to be taken.”