The Church Committee Findings

In December 1974, investigative journalist Seymour Hersh published a front-page story in the New York Times reporting that the CIA had conducted a massive illegal domestic surveillance operation against American citizens. The story prompted Congress to act. In January 1975, the Senate created the Select Committee to Study Governmental Operations with Respect to Intelligence Activities, chaired by Senator Frank Church of Idaho. What the committee found over the next fifteen months was substantially worse than what Hersh had reported.

The Church Committee documented assassination plots against foreign leaders including Fidel Castro, Patrice Lumumba, and Salvador Allende. It documented COINTELPRO, the FBI's program of infiltration and disruption targeting civil rights organizations and political groups. It documented Operation CHAOS, the CIA's domestic surveillance program that had compiled files on over 7,000 American citizens. And it documented MK-Ultra, the CIA's program of covert human experimentation, which the committee described as one of the most troubling programs it had uncovered.

The Church Committee's investigation of MK-Ultra proceeded from an accident. In 1973, CIA Director Richard Helms had ordered the destruction of MK-Ultra files in anticipation of exactly the kind of congressional scrutiny that materialized two years later. The destruction was extensive. Most of the program's dedicated files were eliminated. But approximately 20,000 pages survived because they had been incorrectly filed in a CIA financial records building at Warrenton, Virginia, and were not identified as part of the destruction order.

Those 20,000 pages were discovered in 1977 during a CIA review ordered following the Church Committee's initial investigation. By the time they were found, the committee had already completed its work based on whatever could be reconstructed from surviving references, interviews with CIA personnel, and testimony from the few witnesses willing to speak. The full scope of MK-Ultra as documented in the surviving financial records was not available to the committee when it wrote its report.

Working from destroyed records and reluctant witnesses, the Church Committee established several things about MK-Ultra that have since been confirmed by the surviving financial documents. The program ran from 1953 to 1973. It operated through at least 150 research projects at 80 institutions including universities, hospitals, prisons, and pharmaceutical companies. The research involved involuntary human subjects including psychiatric patients, prisoners, and members of the general public who were given drugs without their knowledge or consent.

The committee's report documented the death of Frank Olson, a US Army biological warfare researcher who died in 1953 after being given LSD without his knowledge by CIA personnel. Olson's family was not told the actual circumstances of his death for over two decades. The CIA had told them he had jumped from a window. What the committee established was that he had been an unwitting experimental subject whose death occurred in the context of a classified mind control experiment.

The committee also established that the CIA had conducted experiments on unwitting subjects in safe houses in New York and San Francisco, where CIA officers observed subjects who had been given drugs without their knowledge through one-way mirrors. The program was called Operation Midnight Climax. It ran for nearly a decade.

The Church Committee's investigation was conducted against the background of the 1973 file destruction. The committee could document what MK-Ultra was and what it did in general terms. It could not fully document what MK-Ultra found. The research results, the data from twenty years of experiments on unwitting human subjects, were in the files that were destroyed. The committee could establish the program's existence and general scope. It could not recover what the program learned.

The committee also found that certain programs adjacent to MK-Ultra, including Project OFTEN and its components, had their files destroyed with what investigators described as particular thoroughness. The existence of these programs could be established from references in surviving documents. Their scope and results could not be reconstructed.

Several CIA officials who were asked to testify declined or provided testimony that the committee characterized as incomplete. The Agency's inspector general, who had produced a 1963 internal report on MK-Ultra that was more detailed than anything the committee could reconstruct, invoked executive privilege on portions of that report. The committee received a redacted version.

The Church Committee's findings produced several institutional responses. The Foreign Intelligence Surveillance Act was passed in 1978, creating a court to oversee domestic intelligence operations. Executive orders were issued prohibiting assassination of foreign leaders. The CIA was required to brief the congressional intelligence committees on its activities. Human subjects research regulations were tightened across federal agencies.

What did not change was any formal accounting for what MK-Ultra had found. The research results were in the destroyed files. No scientist was prosecuted for conducting experiments on unwitting subjects. No institution that had hosted the research faced legal consequences. The people who had been experimented on received no notification that they had been subjects. Many did not know until journalists identified them years later through the surviving financial records.

The 1977 discovery of the surviving financial documents produced a second round of Senate hearings that examined those records in detail. The hearings confirmed and extended what the Church Committee had found. They did not recover what the destroyed files had contained.

The Church Committee produced 14 volumes of findings on what US intelligence agencies had done. It documented two decades of covert human experimentation, institutional complicity across universities and hospitals, and the deaths of people who were used as research subjects without their knowledge. The research results from those experiments were destroyed before the committee could examine them. The institutions that participated have never been fully held to account. The people who were experimented on were never formally notified. The committee established what happened. It could not recover what was learned.