[XHogPilot]

Do you really think O'Neill reviewed 19,000 documents before he handed them over to the writer? Do you really think he should have?

I'll put it this way. If upon my USAF retirement my former administrative personnel gave me a CD of all the documents I had a hand in creating during my time as a constitutionally appointed Officer of the US government, I'd shred it right in front of him and a few other witnesses. That said, executive officers are provided extraordinary privilege to documents related to their administration. Presidential libraries contain untold classified documents. However, those documents are (hopefully) not handled in a flippant manner. They are subject to review and redaction prior to public release. In other words:

Do you really think O'Neill reviewed 19,000 documents before he handed them over to the writer?
Apparently not. But he could have paid an authorized individual to do it. Historically, that is how other's have handled their papers.
Do you really think he should have?
YES.

[Your Nightmare]

You do realize that after O'Neill left Treasury, he asked for all unclassified documents he was entitled to. The Treasury Dept compiled these documents, and they had supposedly been checked (again, by Treasury) to make sure none were classified. Part of this story is Treasury is changing how they keep track of classified documents.

I really don't see how you can hold O'Neill responsible for there being classified document on the CD when Treasury told him there weren't any.