After the attacks of 9/11, which I witnessed from the roof of my home, I traveled to Ireland to recover. Northern Ireland, now embracing a tentative peace, was once an area steeped in severe conflict. Imagine what it must be like to be attacked, not by foreigners, by one's associates, friends and neighbors---by people who speak the same language and have grown up on your same native soil. I spent the day walking through the both Catholic and Protestant (Loyalist) neighborhoods, trying to understand how ordinary people, who are virtually indistinguishable from one another, could kill each other over an ideology. These photos are of what remains of the conflict: terrifying wall murals; men with scars from their throats being slashed; buildings bombed-out and abandoned; barbed-wire separating a "border" between neighborhoods; and little children, whose scars are invisible.