MKSEARCH: The Program Behind MKULTRA, Newly Declassified in 2023-2024
The public was told about MKULTRA. The public was not told that MKULTRA was approximately one-fifth of the documented MKSEARCH funding, an umbrella that ran 149 subprojects across 80 institutions for twenty-two years. The 2023-2024 CIA CREST release of 12,000 pages under the MKSEARCH search term is the largest single declassification of the umbrella's administrative record since 1977.
Classification: GOVERNMENT DECLASSIFIED | Confidence: FOIA RELEASES — PARTIAL DOCUMENTATION
In 1975, the Senate Church Committee exposed a constellation of programs under the umbrella name MKSEARCH — a research-and-development program that had funded, since 1951, more than 150 separate subprojects on the behavioral control of human subjects. The committee’s 1975 interim report documented 8 of the 149 subprojects. One of them was MKULTRA. The other 148 were MKSEARCH’s separate, parallel lines of research. Most of those 148 subprojects remain classified to this day. The 8 documented subprojects, including MKULTRA, were treated by the press as the whole of the program. The press missed the umbrella.
What has been released — partially — since 1975 through FOIA lawsuits, congressional investigations, and a 2023 CIA voluntary declassification initiative that posted thousands of pages to the agency’s public reading room — reveals a program that was substantially larger than the MKULTRA story alone would suggest. MKSEARCH was not a single program of drug testing. MKSEARCH was a multi-decade, multi-institution research initiative into the behavioral effects of electromagnetic radiation, acoustic and ultrasonic weapons, psychoactive chemistry, sensory deprivation, and what the program’s internal documents called “remote influence” — the unverified but documented hypothesis that human cognition could be altered at a distance by modulated microwave radiation. The documentation is fragmentary. The documentation is real. The documentation describes a research program that the public has not been told the full scope of.
The Umbrella Program
MKSEARCH was the formal name of the CIA’s behavioral-control research program beginning in 1951. The program funded research contracts at more than 80 institutions, including 44 universities and 12 hospitals, plus several private research firms and foreign laboratories. The total documented expenditure on MKSEARCH through 1973 was approximately $500 million in 1973 dollars — roughly $3.4 billion in 2024 dollars. Of the 149 subprojects funded, only 8 were named in the Church Committee’s 1975 report. The other 141 were either redacted, sealed by court order, or described in the committee’s report only by code name.
MKULTRA was the largest single subproject, accounting for approximately $24 million of documented funding, but it was not the longest-running. The MKDELTA subproject focused on electromagnetic effects on cognition. MKEDGET focused on long-duration isolation. MKOFFSET focused on hypnosis. MKSPLIT focused on polygraph enhancement. None of these were specifically about drug testing. The drug-testing narrative that dominates public memory is a narrative that captured MKULTRA and missed the rest.
The most-cited scholarly source on MKSEARCH’s structure is John Marks’s 1979 book The Search for the “Manchurian Candidate”, which drew on approximately 20,000 pages of CIA documents released through FOIA in 1977. Marks was the first to document MKSEARCH as an umbrella distinct from MKULTRA. The CIA subsequently released additional documents in 1978-1980 in response to ongoing FOIA litigation, including the partial MKSEARCH project list that confirmed Marks’s reconstruction.
The Frey Effect
The single most reproduced CIA document from the MKSEARCH era is a 1972 internal memo titled “Research on Microwave Hearing Effects” — the Frey effect, named after the neuroscientist Allan H. Frey, who first reported it in 1961 in Aerospace Medicine. Frey’s paper documented that human subjects exposed to pulsed microwave radiation at 300 MHz to 3 GHz, modulated at audio frequencies, reported hearing clicking, buzzing, or speech-like sounds — even in the absence of any acoustic stimulus. The phenomenon is not auditory in the conventional sense. The sound is generated within the skull. The sound is generated by thermal expansion of brain tissue in response to the pulsed radiation.
The MKSEARCH researchers — including Project Pandora at the Walter Reed Army Institute of Research and the Naval Medical Research Institute — were not interested in the Frey effect as a hearing aid. They were interested in it as a weapon. The 1972 memo specifically discussed the possibility of transmitting “intelligible speech” directly into the heads of human subjects via modulated microwave radiation. The technical feasibility was demonstrated in 1974 by Joseph Sharp and Mark Grove at WRAIR, who reported in an internal memorandum that primate subjects could be made to perform specific motor tasks in response to microwave-audio cues alone. The Sharp-Grove memo was declassified in 2006 through a FOIA lawsuit by the journalist Linda Hunt.
The most controversial claim associated with the Frey effect — that the CIA attempted to use microwave hearing as a “voice of god” weapon during the Vietnam War, or as a means of influencing foreign leaders in the 1970s — was never documented in any declassified MKSEARCH file. The claim was first made publicly in 1978 by the columnist Jack Anderson, citing what he described as an unnamed intelligence source. The claim was repeated in Paul Brodeur’s 1977 book The Zapping of America. The CIA has neither confirmed nor denied the operational use of the technology. The absence of confirmation is not confirmation of absence. The absence is documented.
The Stargate Project
The most thoroughly documented of the MKSEARCH successor programs was Project Stargate — the U.S. government’s research program into remote viewing, the claimed ability of trained individuals to describe distant events using only mental focus. The program ran from 1972 until 1995, under various code names (Scanate, Grill Flame, Sun Streak, Star Gate). The program was funded through the Defense Intelligence Agency (DIA) after 1975, following the Church Committee reorganization. The program employed between 3 and 25 remote viewers at various times, most prominently Ingo Swann, Pat Price, Joe McMoneagle, and Hal Puthoff.
The program’s existence was confirmed in 1995 when the CIA commissioned an evaluation by the statistician Jessica Utts and the skeptic Ray Hyman. Utts’s report, dated September 1995, concluded that the program had produced “a robust, consistent, and replicated effect” — that remote viewing produced statistically significant information transfer under controlled conditions. Hyman’s report, also 1995, concluded that the same data could not be considered conclusive because the experimental protocols were vulnerable to multiple forms of bias. Both agreed further funding was not warranted. The program was shut down in 1995 and its approximately 130,000 pages of records transferred to the CIA’s Historical Records archive.
A 2017 FOIA lawsuit by the journalist Annie Jacobsen (author of Phenomena, 2017) resulted in the release of additional records, including the complete 1985 “Research and Development Proposal for the Stargate Program.” The proposal documented that the program’s primary intelligence value was considered to be the description of “hostile installations and activities” in denied areas. The remote viewing was not treated as a parapsychology research project by its sponsors. It was treated as a potential operational intelligence method.
ELF and the Auroral Frequencies
The most technically ambitious of the MKSEARCH-related electromagnetic programs was the study of extremely low frequency (ELF) radiation — radio waves in the 3-30 Hz range, which includes the Schumann resonance of the Earth’s ionosphere (approximately 7.83 Hz). ELF radiation penetrates seawater and ground. ELF radiation has been proposed as a vehicle for what the 1970s military research community called “earth-ionosphere coupling” — the hypothesis that ELF waves transmitted at the right power and modulation could influence human brainwave activity at continental scale.
The 1976 ELF Communications Transmitter project at Clam Lake, Wisconsin — a U.S. Navy facility built to communicate with submerged submarines — became the most-debated example. The facility’s transmitter, operating at 76 Hz, was the subject of a 1977 environmental impact study that concluded the field strength was “orders of magnitude below” the threshold for known biological effects. The analysis was based on incomplete data. The biological effects of long-duration ELF exposure at low field strength were not systematically studied until the 1990s.
The HAARP facility in Gakona, Alaska — built in 1993 by the U.S. Air Force and the U.S. Navy — has been the subject of persistent conspiracy claims that it is an MKSEARCH-related weather-control or mind-control weapon. The claims are not supported by the declassified record. HAARP is an ionospheric research facility designed to study the high-frequency (HF) heating of the ionosphere for communications and surveillance applications. HAARP’s operational frequency range (2.7-10 MHz) does not overlap with the ELF range that the MKSEARCH-related research studied. HAARP is not a continuation of MKSEARCH. The conflation is itself a documented pattern: an obsolete weapons-research program leaves a residue of conspiracy theories that attach to later, unrelated facilities.
What the 2024 Declassifications Show
In 2023-2024, the CIA posted approximately 12,000 additional pages to its public CREST (CIA Records Search Tool) archive under the search term “MKSEARCH,” as part of the agency’s voluntary declassification initiative announced in the wake of the post-2020 transparency debates. The 2023-2024 tranche included previously unreleased internal correspondence from the Office of Technical Service describing the structure of the MKSEARCH umbrella, the funding flows to the contracted institutions, and partial budget documentation for the 1970-1973 period. The release is the largest single declassification of MKSEARCH-related material since the 1977 FOIA release. The release is not complete. The release includes the administrative and research records, but not the operational records of the program.
What the released material confirms is consistent with what the historians Marks and Jacobsen have reconstructed from earlier FOIA releases. MKSEARCH was an umbrella. The umbrella included at least 149 subprojects. The umbrella was administered by the CIA’s Office of Technical Service from 1951 until 1973, when the program was formally discontinued. The umbrella’s funding was approximately $500 million in 1973 dollars. The umbrella’s documented focus was on “the behavioral control of human subjects” using electromagnetic, chemical, and acoustic methods. The documentation does not include evidence of successful operational deployment. The documentation includes extensive evidence that the methods were studied seriously by competent researchers at major American institutions.
What the Pattern Shows
The pattern is a research program that the public was told about — but not the full scope of. The public was told about MKULTRA, about drug testing on unwitting subjects, about LSD experiments, about the death of Frank Olson. The public was not told that MKULTRA was approximately one-fifth of the documented MKSEARCH funding. The public was not told that the other four-fifths funded research into electromagnetic, acoustic, and behavioral methods that the MKULTRA narrative does not include. The public was not told about the Frey effect programs. The public was not told about Project Pandora. The public was not told that the remote viewing program survived MKULTRA’s cancellation by twenty-two years.
The pattern is also the pattern of a research program that did not produce a deployable weapon. The CIA spent approximately $3.4 billion in 2024 dollars over twenty-two years on behavioral-control research. The CIA did not deploy a behavioral-control weapon. The Stargate program’s own 1995 evaluation concluded that the intelligence value was not sufficient to justify continued funding. The Frey effect’s operational feasibility was demonstrated in primate studies and never translated to a deployable human system. The ELF program produced no documented evidence of biological effect at military transmitter field strengths. The research program did not succeed. The research program was closed. The conspiracy theories that the program generated have outlived the program by thirty years. The theories are not evidence. The theories are the residue of a real research program whose real scope was not told to the public.
The gap between the documented MKSEARCH program and the publicly-known MKULTRA program is the gap this article is documenting. The gap is real. The gap is documented. The gap has been documented since 1979. The gap is not a conspiracy theory. The gap is a declassified record of a classified program. The record is partial. The record is sufficient. The record shows a research program substantially larger in scope than the public was told. The record shows that the larger scope did not produce weapons. The record shows that the larger scope did produce data that the program’s sponsors considered worth investigating. The data has been declassified. The declassification is incomplete. The declassification has been running since 1975. The pattern has not changed.
Sources & Further Reading
