This is your FBI.

This is your FBI, an official broadcast from the files of the Federal Bureau of Investigation

presented as a public service by the Equitable Life Assurance Society of the United States.

To your FBI, you look for national security and to the equitable societies for financial security.

These two great institutions are dedicated to the protection of you, your home and your country.

The light, the story of a crime against our nation, espionage.

You'll pick up your newspaper, today's newspaper, June 8, 1945,

and you'll read that FBI agents have captured a spy.

The story will tell, he was captured, and he even carries some details of his work.

But there is never a report of how the case started, of how the FBI learned of the existence of the spy.

Well, how do they learn, what makes them suspicious, what is the first indication that a spy is at work?

Actually, it can be almost anything.

Something as melodramatic as two men landing on the eastern seaboard and a small boat.

Something as obvious as blueprints stolen from an office or something as casual as every day as innocent as a letter.

A letter returned to a housewife in Seattle.

A letter returned to a housewife who had not written it.

Hello, Andrew.

Oh, good morning, dear.

Hey, Xan, serial for me and in the eyes of God.

I feel as though I could eat a horse.

Hey, what's that letter got that I haven't?

Funny thing, Harvey.

...