I'm not sure I agree with your (or Mr. Obama's) terminology choice. The justice system, in my opinion, isn't supposed to dole out revenge, but rather consequences. I worry heavily about the pervasiveness of vengeance in our culture because it directly conflicts not only with my personal spiritual beliefs but also the virtue of compromise that is so integral to the functionality of our government. Yes, the law protects those who are wronged and punishes those who have wronged them, but I don't believe it gives an opportunity for vengeance.
On a more general note, looking forward to this election's close. I can't wait for the parties to stop campaigning and start working together. Ha, almost got through that with a straight face. Here's hoping, though.