director:
Basil Wrangell
guión:
George Wallace Sayre
/
Samuel H. Chain
/
Doane R. Hoag
actor:
John Nesbitt
/
Marjorie Kane
/
Nestor Paiva
/
Jo Ann Sayers
género:
Documentary
/
Drama
región:
Estados Unidos
duración: 11m
fecha de publicación: 1939-08-26
IMDb: tt0143968
sinopsis
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.