I began to explore America in more general terms. I really started this work in 2009. I got the bulk of it done as I was easing out of Disco Night.

I am still covering conflict to some degree. I was back in Iraq. I've covered quite a bit of the Israel and Palestine. But I'm not doing it with the kind of intensity I was before and I'm not seeking out the front line and the kind danger that comes with being at the edge of the war the way I used to.

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.

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.

The travel ban that was imposed by the [Donald Trump] administration is a very direct reverberation of 9/11.

I went out to cover the wars in Iraq and Afghanistan fundamentally [in Buzzing at the Sill] because I was interested in war as a notion and in experiencing it. I was interested in history and how societies form. I was interested in the recent history of what had provoked these wars. So when I finally got out there, I was really seeing the wars through the American perspective, much more than through being embedded with American soldiers and Marines.

I'm a constant editor. Every few months or so I make a ton of 4x6 prints. I put them on a magnetic board and I live with them for a while to see what bubbles to the surface. A lot of this was part of Disco Night originally, and I suddenly started realizing, "If I keep working on this because I'm not done and I put all that in Disco Night, how can this be one book? Is it going to be too long and bloated and crazy?".