Mr. Singer talked about his book Children at War, published by Pantheon. Through interviews with child soldiers, the author examined the reasons children enter the army and describes the training methods used to prepare them for combat. After his talk, Mr. Singer was joined for a discussion by Chris Hedges, author of War is a Force that Gives Us Meaning, and Roger Rosenblatt, author of Children of War. All panelists answered questions from members of the audience after the discussion.