This article analyzes testimony before four Congressional subcommittees, between 1972 and 1975, on a proposed federal shield law. it is argued that within the testimony the press articulates a public, professional mission, but it fails to clearly define who qualifies for protection as a journalist. Following Jurgen Habermas's idea of communicative ethics, it is suggested that the testimony reveals how closely journalism is tied to the public sphere, but also how questions of journalistic practice are raised outside of that public (...) sphere. (shrink)