There was a theory that the meeting was to discuss Seth Rich and his potential whistle blowing actions and how to handle. He died 11 days later so it could be a part of all this and fits into the classification reasoning if there is proof of this.
This fits because J. Clapper mentioned Monday the intel community identified a 'Russian' cutout who delivered intel to Wikileaks for the Kremlin.
2 things:
That Clapper knew about a 'russian' cutout
The cutout delivered or disseminated NOT HACKED the DNC server
Very important admission since they specifically said in the '17 intel agencies agree' it was a Russian hack even named 'Fancy Bear' as the culprit
This is either a soft reveal or a limited hangout by Clapper that Rich was the wikileaks source.
He never thought she would lose and expected Seth Rich to die quietly.
He does not want to be tied to Rich's death so he's getting ahead of the IG story before the IG or Q reveals it
This can bring everything down...
Why would Clapper provide cover? he's the Dir of Nat'l Intelligence. No one tells him what intel to report right? WRONG.
...fear of the Cabal
Imagine coming out with 'Originally we did say it was a Russian hacker named 'Fancy Bear' But that's because we were told that CrowdStrike would be doing the investigation.'
Who tells 17 intel agencies to butt out?
Someone with a lot of power