The idea of accountability in Vietnam, Nicaragua and now Iraq - the media never has that in its quiver. When you see time after time there is no possibility of Nuremberg [war crime trials], we're doomed to have it repeated.

My mother let me know that we're all connected. If some of us become more affluent it's not because we're better or even smarter people - we have a responsibility to ourselves to be a good boy.

I felt that that experience, because of the responsible nature that I found I acted all during that traumatic time, that I felt that I was a man.

Now, I have to - in my defense, I have the say that general knowledge of the deadly nature of cigarettes was not primarily in my mind and nor was it on these poor cowboys, who - many of whom who've died of emphysema since we were shooting.

When I was in Vietnam with Jane Fonda, I was shooting a farmer in a field - just a pastoral scene. And while I was shooting him, an explosion occurred right - he blew up right in my lens, so to speak. And he had stepped on a landmine.

Not one Wall Street executive has been charged with crimes since the 2008 financial crash.

I've been in wars and in riots and hung out of many helicopters in the early days. And there's a detachment that happens when you look through the camera. You're looking for the shot.