CIA Memo Reveals 1954 Debate on Hypnotized Couriers and Mind Control

In July 1954, Its central question was whether hypnosis could be reliably used in espionage—specifically for creating hypnotized couriers, counteragents, and operatives resistant to interrogation. The author's opening assessment was cautious: while the idea of a hypnotized courier was not new, and the originator had not invented it, the feasibility remained unproven under real-world conditions. The memorandum systematically addressed several proposals, each met with skepticism grounded in the lack of field testing.

For instance, the author noted there was no proof that a hypnotized subject could resist being re-hypnotized by another competent hypnotist, and the entire test had not been subjected to actual field conditions such as long travel and time. Similarly, the behavior of a hypnotized individual under third-degree tactics or when plied with chemicals remained unknown—whether they would disclose hypnotic material or indicate its possession had not been determined. The proposal that a subject would have no knowledge…