> They must be vetting each email for sensitive (secret) information, otherwise I can't imagine how it would take 2.25 years to fulfill that request.
Yes, that's the gist of it. From the filing in question:
"Furthermore, in this case in particular, the substantive review process is challenging given the wide-ranging subject matters covered by the documents at issue in this case. Id. ¶ 25. The documents implicate subject areas governed by multiple different bureaus within the State Department, all of which must be consulted before materials may be released. Id. State must also consult with other agencies within the U.S. Government. Id. Moreover, because Plaintiffs’ requests cover communications with outside organizations, State must consult with such outside organizations if the organizations’ confidential business information is at issue."
Though there is certainly tech incompetence involved as well:
"Specifically, it found that one office had not conducted the search by keyword, but rather had only searched the ‘To’ and ‘From’ line of the latest e-mail in an e-mail communication, a method that would not capture responsive e-mails found only in older communications that were part of an e-mail chain."
"In order to do so, as explained in Mr. Stein’s Declaration, IPS must manually open and review every e-mail with an attachment amongst the 34,116 potentially responsive emails in order to determine whether any responsive attachments had inadvertently been omitted."
("Responsive" in this case means "sent or received by four current or former State employees – Michael Fuchs, Melanne Verveer, Cheryl Mills, and Huma Abedin – to or from individuals associated with the Clinton Foundation and Teneo Holdings".)