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Unseen Guardians
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.
- 장르: 다큐멘터리, 드라마
- 국가: United States
- 감독: Basil Wrangell
- 배우: John Nesbitt, Marjorie Kane, Nestor Paiva, Jo Ann Sayers,