Interviewed by Oriana Fallaci in May 1968 for her book "Nothing, and So be it", he stated that he was aware of the indignation he caused and that he understood Fallaci's point of view when she regarded him as a cold-blooded killer. However, he stated that he killed Lém because he felt enraged since the Việt Cộng was wearing civilian clothes. Speaking to Fallaci, he said: "He wasn't wearing a uniform and I can't respect a man who shoots without wearing a uniform. Because it's too easy: you kill and you're not recognized. I respect a North Vietnamese because he's dressed as a soldier, like myself, and so he takes the same risks as I do. But a Vietcong in civilian clothes - I was filled with rage."