afterwards with guesses ken feinberg, former master of the federal september 11th victims compensation fund. this week urban anthropologist elizabeth greenspan and her book "battle for ground 0: inside the poitical struggle to rebuild the world trade center". unit the harvard university lecturer exposed the bitterness with which many different groups stake claim to real-estate considered sacred by so many. this program is about an hour. >> i am ken feinberg and i have the distinct pleasure of chatting for a few minutes with elizabeth greenspan, anthropologist, lecturer at harvard university and the author of a very important new book, "battle for ground 0: inside the poitical struggle to rebuild the world trade center". this battle is not about al qaeda and not about the 9/11 terrorist attacks, at least not directly. what it is about is social, anthropological study of the various political social and other pressures that went into the final decision surrounding the site at the world trade center. why, when, what the problems were. elizabeth greenspan, welcome to afterwards. >> guest: