"At this point, the DOJ should apologize, investigate internally and fire those who were involved in Aaron's case."
This is a bit naive. Certainly it would help the DOJ's image if they did this, and certainly firing those involved would be just, but that act alone misses the point: why are prosecutors who behave like this thriving? This isn't an isolated case at all. There's a more sinister factor at work, and doing only as you suggest would cover it up.
Why would you fire someone for doing what they were hired to do? These are the people you probably want on your side. The real solution is to change their job descriptions to something reasonable. Otherwise their replacements will just do the same thing.
It is only a step in the right direction if it's not thought to have solved the problem. If it is thought to have solved the problem, then it's a step in the wrong direction, even if it means that justice has been partly served.
I.e., the real problem here is cultural. We live in a culture that creates opportunities for people like these prosecutors, and merely firing these people sweeps that under the rug so it can flourish in the future.
This is a bit naive. Certainly it would help the DOJ's image if they did this, and certainly firing those involved would be just, but that act alone misses the point: why are prosecutors who behave like this thriving? This isn't an isolated case at all. There's a more sinister factor at work, and doing only as you suggest would cover it up.