(First Part) You posted Grassley's letter to Wray (or maybe Sessions?) in a different thread yesterday. That letter referenced the January, 2017 IG investigation and even referenced it as the email investigation if I remember right. Grassley then referred at least 32 new FISA related questions to the FBI for the IG to look into and report on (ostensibly a new investigation). If it all comes out in one report, I'd be surprised.
(Second Part) I would be surprised at "unrest". Really bitter and angry people, yes.