I don't know that much about the law, but I have a question about the judicial process that I hope doesn't reveal my ignorance too much. I heard that in civil and even criminal cases, judges have the power to vacate a jury decision, or to significantly alter the damages that the jury finds. What sort of power do judges have to change a jury finding, whether with respect to a finding of guilt or innocent, or to the amount of damages? I understand that in some civil cases for instance, juries might get a little carried away and award the plaintiff absurb amounts of money, but even so, if judges have the power to limit or change that amount, doesn't that fundamentally undermine the jury system? Wouldn't that give judges too much discretion, and allow them ultimately to disregard the jury system?