Thank you so much, guys!
I would like to make a further, rather off-the-wall suggestion.
Somewhere in these pages, I have described a startling radio experience of mine, during which without a lead-in, a man began to describe an assassination plot targeting an important leader. The production, in my memory, did not have Welles, but it was very much along the lines of "The War of the Worlds" in its development. I have never heard anything like it again, but this production you provide us is similar in format. Only at the end was the series identified. As a boy, I often twirled the dial, and found such programs I could not identify.
This docu-drama may have been one of them, or it may be only a desiccated figment of my imagination.
If not, the lack of the proper lead-in would be explained, and the carefully delayed War Department edition, in the midst of Wartime 1943, would be reinforced.
In this particular case, I would opt for personal delusion on my part, but I can not shake the feeling that a more free-form adaptation of this basic story came over my radio in the years I listened most: 1937 to 1949.
[In the latter year, I remember coming home one evening to find my father, as was his wont, perched before our Philco, reading a detective magazine, a Pall Mall smoldering in one of a succession of blue ashtrays. "BBC Newsreel" beamed from Canadian Radio across Lake Erie was on, describing incidents which became The Korean Emergency. My father said, a bit ruefully, wistfully, that I had missed a good Escape that night. "Oh?" I said. I'm afraid girls had fatally seized my imagination. Radio would never again have the same hold on me.]
Anyway, Thanks for [another] "memory."
[I remember thinking of this program, now lost in my mind, most vividly, on the weekend of November 22, 1963.]