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This is what 75 tons of airplane flying through fog looks like to an air traffic controller.

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At O'Hare International Airport, where 2,000 planes come and go every day, electricity

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makes it possible to bring them in. In O'Hare's new control tower, nine complete electronic

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systems keep every plane on the proper flight path. Six million dollars worth of vital equipment,

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all powered by electricity. The pilot looks for these sequence flashers. The controller

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checks his scopes, helping O'Hare's 30 million passengers get there safely.

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It's another mission for electricity. Commonwealth Edison, concern for your total environment.