Here:
Indeed, we think there is ample evidence to indict Ms. Lerner, who has acknowledged “absolutely inappropriate” actions by her division, while casting blame upon low-level “front-line people” who worked for her.
The answer to why it's taking so long is that it's run by the Obama Administration, which intends to stall justice, get around justice, and actually commit injustice, not expedite justice, as in put a Holder on justice, and then Lynch it.