Kept Top Secret until its release in the Foreign Relations of the United States series, this 1961 memo weighs the psychological cost to Berliners if a high-stakes summit with Nikita Khrushchev failed.
President Ngô Đình Diệm and his brother were executed in a CIA-backed coup, but the State Department spent a secret Senate hearing scrubbing the record of American fingerprints.
Soviet duplicity drove Dean Rusk to plan a gamble at the UN, threatening to conduct atmospheric nuclear tests out loud to force a treaty with strict inspection controls.
Dominican underground leaders operated at considerable risk while the U.S. blacked out financial aid and lost all military planning task force records.
American pilots faced lethal risks in Cuba when Secretary Dean Rusk warned the Soviets that attacking reconnaissance flights could provoke a return to the hostilities of October.