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November 20, 1970

Letter from Director of the Bureau of International Scientific and Technological Affairs Herman Pollack to Miller N. Hudson, Jr. at the US Embassy in Rio De Janeiro

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

May 16, 1968

Telegram from the Consul of the US in Sao Paulo to the Department of State, 'Brazilian Centrifuge Program'

Information about the classified Brazilian centrifuge program.

March 23, 1968

Airgram from the Embassy of the US in Rio De Janeiro to the Department of State, 'Assessment of Brazilian Nuclear Device Capability'

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.

March 17, 1967

Research Memorandum RAR-8 from George C. Denney, Jr., to the Secretary, 'The Latin American Nuclear Free Zone: Pluses and Minuses'

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.

October 6, 1967

Telegram from the Indian Ambassador to Brazil, 'Nuclear Cooperation Between India and Brazil'

Brazil has entered cooperative agreements with many countries and is would like to work with India as well.

June 25, 1977

Ministry of External Affairs, (AMS Division), 'The Nuclear Issue in Latin America'

Nuclear proliferation in Latin America.

November 27, 1981

Telegram No.: MEX/104/1/81, Secretary Haig’s Visit to Mexico (November 23-24)

The US ratified additional protocol I to the Treaty of Tlateloco for the non-proliferation of nuclear weapons in Latin America.

September 7, 1977

Letter from US Congressman Paul Findley to Brazilian Vice-President Adalberto Pereira dos Santos

Findley proposes a system of mutual inspection of nuclear facilities between Argentina and Brazil. According to the agreement he proposed, Brazil and Argentina would renounce the intention to develop a nuclear device and would accept mutual inspections of their respective nuclear facilities.

November 8, 1985

Brazilian Ministry of Foreign Relations, 'Information for the Meeting on Nuclear Issues with Argentine Authorities'

Information for a meeting between José Sarney and Raul Alfonsín and as a guide to the joint declaration on the peaceful character of nuclear programs and for the creation of a working group to promote cooperation between the two countries. Itamaraty recognized Argentina’s achievements in the nuclear realm. The last two paragraphs suggests the rejection of a possible Argentine proposal to create a system of mutual inspections.

October 1985

Brazil-Argentina Joint Statement on Regional Nuclear Policy

Proposed joint statement to create an Argentina-Brazil working group to discuss nuclear energy.