This isn't new for anyone who has been following the saga. Similar documents about the INS questioning that relationship have been public for a while, and are mentioned in Corsi's book. Arpaio probably has something other than this.
But Corsi is an Arpaio Posse insider under embargo not to reveal what has been found. I regard this article to be likely to be a preview of the presser coming just one week before the event.
The “high production quality” Youtube ready video of the evidence has likely been prepared. Corsi knows how to run a marketing campaign and I regard this as Corsi’s attempt at framing in advance trying to spin a Posse finding that flagrant Communist Frank Marshall Davis was the dad as being something that was consistent with INS suspicions.
In other words, Corsi is trying to validate the Posse finding using the INS docs.
Agree. Hope he more/better.