Soviet representatives being sent to Italy, Japan, Mexico, Brazil, and Italy, are instructed to visit the head of state or the minister of foreign affairs and relay the oral declarations contained in this document. The country-specific oral declarations reinforce the Soviet position against the use of nuclear technology for militaristic objectives and object to proposed measures that would undermine the efficacy of the NPT.

Document is notifying Soviet ambassadors to visit respective heads of state and Ministers of Foreign Affairs and inform them of the Soviet position on the draft treaty of the NPT given that the 18-Nation Committee on Disarmament recently finished its deliberations on the Treaty and submitted it to the UNGA.

Brezhnev discusses negotiations with the United States over the Non-Proliferation Treaty.

Miller thanks Pollank for his letter (attached) with historical background on Brazil's interest in developing nuclear weapons.

Information about the classified Brazilian centrifuge program.

The US Embassy in Rio De Janeiro sends airgram to the Department of State with a technical and political assessment of Brazil's nuclear capacity.

The US Embassy in Rio De Janeiro sends airgram to the Department of State regarding military pressure in Brazil to produce fissionable material for nonpeaceful purposes.

The treaty creating the Latin American Nuclear Free Zone (LANFZ) was signed at Tlatelolco, Mexico, on 14 February 1967. Taking a close look at key provisions, INR found that the entry into force provisions included loopholes which “unenthusiastic” states could use so the treaty did not cover their territory.

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

Mexican and Brazilian representatives disagree on if peaceful nuclear explosions (PNEs) are allowed by the Latin American treaty.