Judging the past: Auschwitz 'bookkeeper' goes on trial in Germany (part 2)

He's called the "accountant of Auschwitz". 93-year-old Oskar Gröning is standing trial in the German town of Luneburg, charged with complicity in the murder of 300,000 Holocaust victims. It's a hugely symbolic act, as authorities make a last attempt to put the handful of remaining Nazi guards in the dock before they die. Given the age of people such as Gröning, what does such a court trial achieve? And do the moral lessons from such a judicial exercise resonate with the younger generation?