I doubt there is much direct documentation between the two perps in the conversations unless the airplane was bugged (wouldn't that be a hoot?). I suspect the 30 pages more likely consists of reports on observations of this "chance" meeting meant to be secret on an out-of-way hidey place on an obscure runway extension in Arizona. I also suspect that those reports contain comments from security people to the effect of, "What the hell is our boss doing meeting with the husband of the object of a major investigation???" Remember also that Bill Clinton most likely had Secret Service agents still assigned who file reports. Someone tipped off the local TV reporter who showed up very uninvited. That had to be someone in the party and that someone had to harbor ill will against the perps meeting as they did. That person or persons may have filed reports the swamp wants deep-sixed now.
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“You can vote your way into socialism, but you have to shoot your way out.” — Too fundamental to have an attribution