Why don't you go talk to the Kurds and find out what happened in this "peaceful country" you talk about? I doubt if they would share your view of Iraq and the absolute brutal torture this evil man did to their friends and family. It is a wonder any survived.
People were put to death or sentenced to confinement with no justification but because that is what Saddam wanted. "Peaceful country" does not describe this brutal dictator and what he did to his own people. Don't imagine many Iraqi's would agree with your analysis except those loyal to Sadaam.
People have to know there are consequences for their actions no matter how old they are. He deserves nothing except to be hanged and the sentence carried out. You do realize this trial was a small part of the crimes against the man? Why should the US have to keep this man in custody and continue to feed him?
Maybe I'm too filled with the holiday spirit.