Tom Blair
Jim Bannon
Tom Blair

Documentary short film explaining the need for secrecy in the exchange of sensitive government information, so as to prevent sabotage or subversion of the American war effort.
Tom Blair
Jim Bannon
Tom Blair
Mrs. Tom Blair
Jeanne Bates
Mrs. Tom Blair
Sergeant
William Haade
Sergeant
Radio Broadcaster
Tom Hanlon
Radio Broadcaster
Train conductor
Milton Kibbee
Train conductor
Mr Niblick
Syd Saylor
Mr Niblick
Mrs Nelson
Ann Shoemaker
Mrs Nelson
Railroad engineer
Harry Strang
Railroad engineer
Loose-lipped citizen
John Tyrrell
Loose-lipped citizen
Bartender
Robert B. Williams
Bartender
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