Papers of John F. Kennedy. Presidential Papers. National Security Files
This folder contains Department of State telegrams regarding the United States, Soviet Union, and Berlin. Topics include U.S. helicopter flights over East Berlin, observances for the one year anniversary of the construction of the Berlin Wall, potential travel requirements by the Germany (Democratic Republic), and protocols for air corridor use. Of note are telegrams regarding an effort by CBS (Columbia Broadcasting System) to film an attempted escape of East Berlin refugees via a tunnel.