[The Middle East conflict ] just kind of ran its course for me. For a long time I could justify doing it to myself, no matter how irrational it was. It was important to me and my work. And I just don't feel it in the same way any more. When it comes up and it's important to me, I'll do it, but more out of sense of duty than desire - which used to be a big part of it.

I realized how little I knew about my own country. I had grown up in the suburbs and, after college, I moved out of the country, so I didn't really know the place well. When I started following soldiers and their families back home, it provoked a lot of the questions about who we are as a nation, questions I realized couldn't be explored through the more limited framework of looking at the military at war and at home.

I was taking all prints and I brought them to the Magnum meetings, trying the old Josef Koudelka trick: Give them to photographers, who are getting bored during the talks about the economics of the agency, to look through with a pen. They'll separate them in two piles. I started to find the core pictures that people seem to relate to.

That kind of unease, that melancholy, is of course partly my interpretation, but partly, I think, it's something that's really there [in America] as well. It resonates with this moment and the sort of alienation from the power structure a lot of people feel, as well as a certain amount of desperation, in the hope of disrupting the power structure so they can live better lives. I think in those ways, it's intimately connected to today.

Sometimes the picture is more interesting than what is going on. Sometimes the picture is suggestive of greater things in society or the history of what might be connected to the theme in the pictures and those are worth exploring.

Nothing is over until there's something more decisive than your own thoughts.

It was sometimes provoked by assignments, then I'd go back on my own dime if I really clicked with a place. And sometimes it was just hanging out with my family or friends.