High School students in America debate why President Roosevelt didn't bomb the rail lines to Hitler's camps. Their children may ask, a generation from now, why the West stared at far clearer satellite images of Kim Jong Il's camps, and did nothing.

I am evolving from being an animal,' he said. 'But it is going very, very slowly. Sometime I try to cry and laugh like other people, just to see if it feels like anything. Yet tears don't come. Laughter doesn't come.