Skip to main content
Case File · ARCHIVE-025Declassified
Agency NSAFiled JUL 18 · 2026Runtime 3 min

27apr Messages

U.S. public record · FOIAUpdated July 18, 2026

◆ BLUF — The short version

This is “27apr messages,” a declassified intelligence briefing compiled by a United States intelligence agency in the year nineteen forty‑four. The document is notable because it contains a series of intercepted New York‑Moscow communications that reference the cover names “ANTENNA,” “LIBERAL,” and the project designation “ENORMOZ,” providing insight into covert identification practices during the war.

Agency
National Security Agency (NSA)
Date
JUL 18 · 2026
Release
Declassified · U.S. public record (FOIA)
Source document
View the primary source documenthttps://archive.org/details/27apr_messages
↯ Dispatch — press play3:12
0:003:12
Share
Xinr/
Episode notes

This is “27apr messages,” a declassified intelligence briefing compiled by a United States intelligence agency in the year nineteen forty‑four. The document is notable because it contains a series of intercepted New York‑Moscow communications that reference the cover names “ANTENNA,” “LIBERAL,” and…

Source document: https://archive.org/details/27apr_messages

Questions about this case

What was 27apr Messages about?
This is “27apr messages,” a declassified intelligence briefing compiled by a United States intelligence agency in the year nineteen forty‑four. The document is notable because it contains a series of intercepted New York‑Moscow communications that reference the cover names “ANTENNA,” “LIBERAL,” and the project designation “ENORMOZ,” providing insight into covert identification practices during the war.
Why was this case declassified?
This material was released by the National Security Agency (NSA) through the U.S. declassification and Freedom of Information Act (FOIA) process. The originating source document is linked in the case notes above so the citation chain is fully auditable.
intelligence-vault

Related cases

NSA

More from NSA

✉ Dispatches

Get the next declassified case in your inbox

A short dispatch when a new file is released — narrated, answer-first, and linked straight to the primary source. No spam; unsubscribe anytime.

Episodes are produced from declassified releases on war.gov, the FBI Vault, NARA, and The Black Vault. Source documents are linked on every card so the citation chain is fully auditable.