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The "unseen guardians" of the title are the Postal Inspection Service, which investigates mail order racketeering; the Underwriters' Laboratories, which are shown testing electrical equipment, fire extinguishers, and large floor safes; and those who run orphanages, who assure that the children in their care are placed in proper adoptive homes.
Top Cast
John Nesbitt as Narrator
Nestor Paiva as Mail Order Crook
Jo Ann Sayers as Leading Actress
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