Joseph Nye
In June 1977, U.S. First Lady Rosalynn Carter visited Brazil and met with Geisel and his foreign minister, Azeredo da Silveira, in Brasília. Mrs. Carter was accompanied by Robert Pastor, U.S. National Security Advisor for Latin America, and Joseph Nye, Assistant Secretary of State for nuclear affairs. Although Mrs. Carter and Geisel talked about non-proliferation and the Treaty of Tlateloco, no substantive agreements on nuclear policy were created during this visit.