The FBI only read email that was to or from Clinton, not to or from Huma or anyone else. That in itself is enough to dispute their having done a thorough investigation.
'Based on our review, we have not changed our conclusions that we expressed in July with respect to Secretary Clinton.'
The FBI conclusion in July did not exonerate Hillary. It did not close the case. It was that no reasonable prosecutor would bring charges. mmmmm. Does reasonable mean a prosecutor who has heard of Arkanside?
Were any of the emails to or from Hillary classified? If so, how many, and by what exact classification?