Foreign Relations of the United States, 1961–1963, American
Republics; Cuba 1961–1962; Cuban Missile Crisis and Aftermath, Volumes X/XI/XII,
369. Notes from transcripts of JSC meetings, October 23. Low-level
reconnaissance; U.S. reaction to possible U-2 shootdown; blockade of
Cuba. Secret. 3 pp. DOD, Office of the Chairman of the Joint Chiefs of
Staff, Office of Joint History.