WW2 may have ended 69 years ago, but there are still people alive today who witnessed (and incredibly survived) the most unimaginable horrors in the Holocaust. There are death-camp survivors who can never forget (whether they can forgive, I do not know) the abject cruelty and wickedness they suffered, or the faces of the people who committed these atrocities. No matter how old the criminals are, IMO they are still punishable. Any other course is an insult to the millions whom we can never let slip from our collective memories.