Counter-Intelligence Special Operations Raids and Searches (1969) from Resartus on Vimeo.
Counter-Intelligence Special Operations: Raids and Searches - National Archives and Records Administration 1969 - ARC Identifier 649186 / Local Identifier 263.1906 - National Security Council. Central Intelligence Agency. (09/18/1947 - 12/04/1981). This film explains surveillance techniques, Checkpoint Charlie, and cooperation with proper civil authorities.
U.S. Army Audiovisual Center, "Counter-Intelligence Special Operations Raids and Searches," Special Operations History Foundation, accessed April 19, 2019, http://specialoperationshistory.com/items/show/132.