Officer explains the procedure and the methodology of working of an air raid warning service in the United States.
United States USA Date:1942 Duration:3 min 44 sec Sound:Yes
A film titled: 'Spread the alarm' on the air raid warning systems in the United States. A map locates different places. Newspaper headlines about the air raids and bombardment. Officer seated at his desk in the office. He explains the working of the air raid warning service with the help of a diagram. He states that the warnings are reported over telephones. He points at the diagram and explains the procedure. He talks about the radar service to detect the activities of incoming enemy aircraft for the purpose of air raid. As an enemy aircraft is detected, the information is communicated through the telephone lines established for the purpose. The information is disseminated through various warning centers. He also explains the air raid precaution service with the help of another diagram. He says that the rescue team takes care of the damage and the casualties. The district warning centers provide the additional aids to the people.
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