There has been significant debate about the United States' tactics in the fight against terrorism and how they have undermined America's moral authority. Recently, I spoke with two authors who have new books out on the subject. Jane Mayer is an investigative reporter for The New Yorker. Her book is called The Dark Side: The Inside Story of How the War on Terror Turned Into a War on American Ideals. Philip Gourevitch, editor of the Paris Review, co-authored the book Standard Operating Procedure. Here is a part of my conversation with each of them.