Fair enough. In that case SIU should publish their entire report the day they decide that charges aren't warranted. Instead they keep the cloak of silence over everything.The main difference being that NTSB is looking for causes for what happened, to make sure that it doesn't happen again, while SIU is looking to see if there will or won't be a prosecution. Releasing evidence can be seen as poisoning the jury pool, which could jeopardize prosecution. Different goals necessitate different models.