[mlo]

"Oswald was a patsy, just as he said. The CIA uses cutouts for “plausible deniability.”

He was lying of course. The CIA didn't use Oswald for anything.

"How did they come by that much information in two days? Who would have “dossiers” ready to go when needed?"

You made quite a leap there. It was the biggest story in the world, covered by hundreds of reporters actually doing their jobs. In a couple of days it they put together a lot of background. Not really surprising.

[E. Pluribus Unum]

You are thinking of today.

You do realize they didn’t have the Interwebs or Google yet?

Just disseminating it in that amount of time would have been difficult, much less putting it to together.

Somebody had it ready to ship to the wire services.