Nominations of Milton S. Gwirtzman, James J. Dillman, Elizabeth T. Duskin, Donald S. MacNaughton, and David Rodgers : hearings before the Committee on Finance, United States Senate, Ninety-sixth Congress, first session on the nominations of Milton S. Gwirtzman (Chairman), James J. Dillman, Elizabeth T. Duskin, Donald S. MacNaughton, and David Rodgers to be members of the National Commission on Social Security, January 29 and September 21, 1979