The manual is easy enough to find. It is the paperwork behind it that is missing.
The Document
The record under discussion is a manual titled “Psychological Operations in Guerrilla Warfare” (in its original Spanish-language form, “Operaciones sicológicas en guerra de guerrillas”), credited to an author using the name “Tayacán.” The copy carries an internal date of October 18, 1984, and is attributed to the Central Intelligence Agency. It is held in the Document Archive of The Black Vault, a public repository of declassified and FOIA-released material run by John Greenewald, listed at 673.42 KB. The Black Vault’s page describing it was published March 25, 2023.
That is the entire set of fixed points in this story: a title, a date on the document, a pseudonym, a publisher, and a date of coverage. Nothing else in the manual’s history is pinned down the same way.
What It Tells Its Reader to Do
Whatever its origin, the content is specific. The manual tells its reader to map the enemy’s strengths and weaknesses before acting, and in the same breath to map the social and political mood of the population nearby. Messaging is to be built around local language and local custom rather than imported wholesale. Rumor campaigns and mass communication appear as tools for shaping opinion, and the text returns more than once to a single idea: that credibility and a consistent message are requirements, not extras, the things that make the rest of it work or fail.
Its central unit is the “armed propaganda team,” a group assigned to carry the movement’s message to a population, win that population’s support, and also carry out sabotage and intelligence gathering, treated in the text as one combined job rather than three separate ones. None of this describes what was done in the field. It describes what the document instructs.
The Paper Trail That Isn’t There
What the source lacks is as notable as what it contains. There is no internal CIA case or file number attached to the copy posted on The Black Vault. There is no date given anywhere in the source for when this copy was released under the Freedom of Information Act (FOIA), the federal law that lets the public request copies of U.S. government records. No office, unit, or approval chain is named inside the document that would tie it to a specific program. The Black Vault presents and describes the manual; it does not claim to have authenticated it, and no further inquiry or review is cited anywhere in the source.
None of that absence is evidence of concealment. It describes the paperwork that does, and doesn’t, exist around this particular copy, and nothing more.
The Conclusion, As It Stands
No formal determination of authorship, or of CIA intent, appears anywhere in the available record. The furthest the source goes is to describe the manual as attributed to the CIA, language that stops short of confirming it and was never carried any further. There is no finding beyond that description to report.
What Is Still Open
Four separate gaps remain, and each one would change what kind of object this document is.
The first is the identity behind “Tayacán.” The Black Vault’s own description calls it a likely pseudonym and states plainly that the true author has not been established. Separate descriptions of the manual name other people. A Wikipedia infobox lists John Kirkpatrick as author and Edgar Chamorro as translator. A different, less formal account names four contributors instead: a CIA-assigned Contra coordinator named Ray Doty, Chamorro again, and two further collaborators, Noel Ortiz and Laura Ortiz. The two lists don’t agree with each other, and none of the names appear as a byline inside the manual itself, which carries only the name Tayacán.
The second is the FOIA release: no exact date or circumstance for when this copy entered public hands is stated anywhere in the source under discussion.
The third is any specific CIA office, program, or approval chain connected to the manual. The attribution runs to the agency as a whole, not to a named unit within it.
The fourth is use. The manual’s intended audience was the Contra forces fighting Nicaragua’s Sandinista government during that country’s civil war. Whether those forces ever received or acted on this particular text is not addressed anywhere in the record.
What People Have Made of It Since
None of that has stopped the manual from being used as evidence in arguments made well after 1984. Critics cited in reporting on the document have argued that tactics like these, aimed at a civilian population, risk undermining democratic process and crossing into violations of human rights. Other commentators have pointed to the manual’s CIA attribution as a reason to revisit the agency’s broader involvement in Cold War-era regime change and guerrilla support across Central and South America.
Those are arguments made about the document after the fact. The manual itself offers no comment on either, and neither argument appears in the attribution language the source uses.
What remains is the shape of the gap rather than its contents: a manual that reads like an operations guide, one pseudonym, an attribution with no visible chain of custody behind it, and a posting date more than thirty-eight years after the date printed on the document itself. The copy sits in The Black Vault’s Document Archive for anyone to read. Who wrote it, under what order, and whether it ever reached the hands it was addressed to, the record does not say.