The negative effects of combat were nightmares, and I'd get jumpy around certain noises and stuff, but you'd have that after a car accident or a bad divorce. Life's filled with trauma. You don't need to go to war to find it it's going to find you. We all deal with it, and the effects go away after awhile. At least they did for me.

Who wants a life of ease? And who wants a life in the office that you hate, and who wants to play golf?

The cause doesn't have to be righteous and battle doesn't have to be winnable; but over and over again throughout history, men have chosen to die in battle with their friends rather than to flee on their own and survive.

No matter how many people you kill, using a machine gun in battle is not a war crime because it does not cause unnecessary suffering; it simply performs its job horrifyingly well.

Ironically, though our society of affluence brings safety and stability, it doesn't bring psychological health. As wealth goes up, suicide and depression rates tend to go up. I read one study that compared women in North America with women in Nigeria, and the group with the highest rates of depression was urban North American women, which is the wealthiest. Now, there are obviously huge stresses that come with poverty, but the poorer the society, the more collaborative people have to be.

One interesting thing I found was that if you take an affluent modern society and collapse it during a crisis, like a war or a natural disaster, people begin relating in a more ancient, organic way. They're functioning in small interdependent groups and putting others first. And another irony is that even in terrible times, cooperating makes people feel good.

My reporting in Africa wouldn't be political per se, but it's certainly the point of my reporting - and of a lot of other reporters I know: Human suffering is bad, and if reporting stories about it brings it to light and someone does something, that's part of the point of journalism. And it's a thin line between that and activism, and you have to be careful about that.