employees join me in welcoming henry weincek. [applause] thank you. i appreciate your remarks, it's a home coming for me. i spent many months downstairs and down the hall when had a fellowship to begin my research on the book. and i'm extremely grateful to personally for all the aid he lent know support over the years and also to the former executive directer of month cello and the current executive directer for their support in the past and present. this is a great resource and as andrew says month cello is the leading -- the study of the subject is really very difficult for a number of republicans. it's hard to get out the documents. and the other is the psychology immedment that the americans have and as described by the though lodge began who happens to be the father of my editor, he says american americans by ultra additions are the most innocent people on earth. you never do anything wrong as the people and as a country. so it becomes very difficult for us to learn anything from the past because there was never any right and wrong. it was always