The surveillance discourse in British broadcast news since the Snowden revelations covers justifications and challenges. Justification focuses on authorisation and rationalisation strategies stating terror threats explicitly, which are often expressed by governmental actors. Delegitimation strategies predominantly use moralising and mythopoetic arguments of civil liberties and are expressed by Snowden himself, politicians, rarely by journalists, non-governmental organisations, and very rarely by citizens. However, what exactly is at stake when mass surveillance increases remains obscure in the broadcast discourse. The surveillance discourse should be richer especially in order to give the audience a chance to understand the less concrete contra-surveillance arguments better.