a historian that appreciates quality of the conversations, i think we knew and would press the pushbutton in advance of an important meeting. having said that, i don't know about recordings that were not made. but the ones that were made were of very high-quality meetings meant yes, we will listen to one recording of the most deliciously heady of things. >> only one thing -- scott brown, i'm afraid. [laughter] the great story there, the last one to do this, and he did it successfully with pat moynihan in new york. he ran against william buckley's brother jim. at the first debate, buckley turned to him and starts bashing comes right out of the court with moynihan. he looks up and says, oh, the mudslinging begins. [laughter] >> thank you. tell us and generalize for us, historians have not typically have access to anything resembling this kind of material with the exception of nixon and whatever. how were we to regard the source of information? what is it? you have to check it? is a good way to his? >> i think it is good to go. what is wonderful about these tapes is the immediacy of them. al