US General George Marshall testifying before Joint Pearl Harbor Investigating Committee in Washington, DC

The transcript details a recollection of events involving the receipt and reading of Japanese message intercepts. The speaker discusses the significance of a specific message received at 1:00 o'clock on December 7th, which indicated imminent action. The speaker then describes communicating with various commanders in the Pacific region and the considerations involved in sending alerts. The narrative concludes with the speaker writing out a message in longhand.

What was Colonel Brandon's action upon the arrival of the speaker?

What did the speaker find unusual about the message received at 1:00 o'clock?

What was the speaker's immediate action after reading the message?

What regions were mentioned as having various commanders in the context of the message?

What was the concern regarding the alert given to the commanders?