The IG report didn't rely on emails, only employee statements. So there should be a trail to follow, but, Witholder didn't document his recusal in the AP case and conveniently didn't remember the date he recused himself. So, this group of corrupt thugs are good at avoiding official channels of communication (phone calls, using personal email accounts, etc.)
Michelle Bachman in an interview this week said that the lower level grunt employee do only what directed to do and have a supervisor checking all their work
She also referred to directives coming down from the top
Someone has signed that directive and if following government procedure have held at least one training session to make sure it is implemented consistently throughout the system
There WILL be a trail
No low level will go to jail to cover up for supervisor