c-span: what role did bob herndon play? >> guest: bob herndon--i mean, everybody sort of fell into--into character. i mean, shepard became sort of the whitacre--the whitacre guy. he was the fellow who was most involved in dealing with whitacre; all of them were on one level of another, but there's--it's not like shepard. you know, herndon never spoke to--to whitacre, but--but shepard had the longest relationship with him. so, you know, there would be times when whitacre would call the fbi office, and he would always--almost always ask for brian shepard. bob herndon became the tapes guy, for lack of a better term. he was a fellow who had a fairly good background in undercover investigations using tapes. he--he understood the complexities of the documentation for this kind of case and sat down and decided, you know, 'we--we have hundreds of tapes coming in. we need some method of understanding them,' and began doing the summaries of the tapes. so he became the best versed on what was in w--which tape and how it interrelated t