Duplicate story transferred from combined print - use this version as it is better quality.
Titles read: "LISTENING POST!"
M/S radio aerial on building. Various shots of BBC technicians at work at the machines which record broadcasts and messages from all over the world that are picked...
Communication technology in action - cables which span the Atlantic and a "siphon recorder".
Old radio masts are knocked to the ground in Hanover, Germany.
A telegram is typed on a teleprinter machine in London, and is printed out in Edinburgh.
A tour around the Post Office Radio Station at Rugby.
A film about psychological test been carried out to discover what jobs people are best suited too.
Leader of the Communist Party addresses the public.
A memorial service for Lenin held by British Communists.
US army equipment bolsters Laotian defences against Communist China and North Vietnam.