Harold Brown and the Defense of Pinochet’s Military Ties
By Theo Marchetti ·
A car bomb in Washington, D.C., murdered a diplomat and his colleague, yet the Carter administration spent months debating whether military ties outweighed the cost of state-sponsored terror.
# Harold Brown and the Defense of Pinochet’s Military Ties
A car bomb detonated on a Washington, D.C. street in September 1976, turning a diplomat and his colleague into casualties of a foreign war fought on American soil. Orlando Letelier, a former Chilean diplomat and outspoken opponent of dictator Augusto Pinochet, was killed alongside Ronni Karpen Moffitt, a colleague at the Institute for Policy Studies. The act was a strike by the agents of the Chilean secret police, DINA, part of the regional terror network known as Operation Condor. It was an attempt to murder the Chilean resistance in the heart of the American capital.
The archive's curated description of a confidential memorandum from October 1979 shows that nearly three years after the explosion, the Carter administration was still struggling to decide if the blood on the pavement demanded a change in how the United States dealt with the regime that ordered the hit.
From Government to Judge
Robert Pastor, who served as the deputy for Latin America to National Security Advisor Zbigniew Brzezinski, wrote to the advisor with a sense of profound institutional unease. Brzezinski, a Polish-American diplomat and political scientist who served as the National Security Advisor for the Carter administration from 1977 to 1981, was the man tasked with weighing these competing interests. Pastor’s memorandum focuses on the administration's response to the Pinochet regime’s obstruction of justice and its refusal to cooperate in the Letelier-Moffitt investigation.
Pastor did not merely express disagreement; he expressed a fundamental distrust of the direction the State Department had taken. The record shows that Pastor stated, "I have never been comfortable with the way State has handled the Letelier case." He went further, noting an inability to "comprehend the transformation of the U.S. from government to prosecutor to judge, which is where we currently are."
The State Department, the executive department responsible for U.S. foreign policy, had moved to advocate for a policy that held Pinochet accountable for the act of terrorism. While this appeared to be a pursuit of justice, Pastor saw it as a departure from the traditional role of a sovereign power.
The desk's reading is that Pastor’s discomfort was not born of a desire to protect Pinochet, but of a strategic warning. When a government shifts from managing foreign relations to acting as a prosecutor and a judge, it effectively burns its most valuable intelligence assets. Using sensitive, high-level intelligence to build a legal case for a courtroom or a public indictment closes the very channels required for long-term diplomacy and surveillance. To Pastor, the State Department was trading long-term access for a short-term judicial victory.
Document imagery from nsarchive.gwu.edu From the files: nsarchive.gwu.edu
Protecting the Lines
While the State Department pushed for accountability, the Department of Defense was pulling in the opposite direction. Secretary of Defense Harold Brown argued that military-to-military relations with the Pinochet regime should not be affected by any sanctions. Brown, a veteran of the Air Force and a former Tuskegee Airman, viewed the security architecture of the Western Hemisphere through a lens of continuity and interoperability.
This created a friction point between the administration's diplomatic goals and its military requirements. The Pinochet regime—the authoritarian military dictatorship that ruled Chile from 1973 to 1990 following a U.S.-backed coup—was a partner in the Cold War's regional containment strategies. To the Defense Department, the regime's involvement in a terrorist act in Washington was a secondary concern compared to the stability of the military alliance.
The pattern suggests a hierarchy of interests where Cold War military interoperability is viewed as a non-negotiable asset that outweighs the diplomatic cost of a terrorist act. In this view, the regime's murder of a political opponent in the streets of D.C. was a domestic Chilean matter, whereas the training, intelligence sharing, and hardware exchanges between the U.S. and Chile were matters of global security. The connection between Brown and the regime was not one of shared ideology, but of shared utility.
The Evidence Gap
Pastor’s memorandum concludes with a directive to the administration: the government must determine what evidence exists regarding the regime's role in the car-bombing and define what its policy objectives are in imposing sanctions on the military government.
It is notable that in a discussion centered on the existence of evidence for a state-sponsored assassination, no principals from the intelligence community appear. The record is silent on the CIA or other agencies that would have been the primary collectors of the very evidence Pastor was requesting.
If this file is shaped the way it looks, the absence of intelligence officials is not an oversight; it is a structural necessity. The desk's reading is that the intelligence community was intentionally partitioned from this policy debate to maintain plausible deniability. If the administration used intelligence to drive sanctions, it would have to acknowledge the source of that intelligence, potentially exposing the methods and human assets used to penetrate the Pinochet regime. By keeping the debate between the State Department, the NSC, and the Defense Department, the administration could fight over the consequences of the murder without ever having to reveal how they knew it was a murder.
Furthermore, the memorandum treats the Letelier assassination as a bilateral issue between the United States and Chile. This narrow framing avoids the much larger, more complicated diplomatic wreckage of Operation Condor—the coordinated campaign of political repression and assassination conducted by several South American military dictatorships. By focusing on Pinochet's specific obstruction, the administration could address the crime without having to confront the entire regional architecture of state-sponsored terror that the United States had historically tolerated.
The Cost of Diplomacy
The tension described by Pastor reveals a government caught between two irreconcilable roles. One role is the enforcer of international law, a government that responds to a bomb in its own capital by punishing the perpetrators. The other is the manager of global stability, a government that maintains relations with murderers to ensure the lines of communication and military cooperation remain open.
The pattern of this record suggests that the Carter administration's response was being driven more by the need to manage political optics than by a coherent national security strategy. Pastor's request to define "policy objectives" alongside the assessment of evidence implies that the administration had not yet decided if it actually wanted to punish Pinochet, or if it merely wanted to look like it was trying.
The desk's reading is that the refusal to integrate intelligence into the prosecution was a calculated move to protect the machinery of the Cold War. The administration chose to keep the murder of Orlando Letelier in a legal gray zone, treating it as a diplomatic hurdle to be cleared rather than a crime to be prosecuted. The goal was not justice for the victims, but the preservation of a status quo where the United States could condemn terrorism in the abstract while continuing to fund and train the regimes that practiced it. The cost of this decision was the continued impunity of the Pinochet regime and the signal it sent to every other dictatorship: that as long as you remain a useful military partner, your crimes on American soil will be treated as mere policy complications.