rian lamb: how often did your father use that?avid maraniss: i didn't count the number of times, but -- not all of the questions, but he certainly used not only testify, against himself, but to name any other names or testify against as he was , interrogated. brian lamb: so when you started project, where did you go to find the things that you needed to write this book? david maraniss: well, i went so many places, but one of the first places i went it was archives, right down the street. there were le terrific. ll of the house unamerican activities committee records are open now. congressional committee, archivest helped me to find what i needed. in one of those officials was something on my father. before that, because it was a hadic hearing in detroit, i long known about the transcript. in the transcript my father statement i would like to read. does e chairman, wooshgsd not allow him to read the statement. he might have -- he probably him read it if my father had confessed to his sins sought absolution and named names but he di