Why do certain security goods become banal (while others do not)? Under what conditions does banality occur and with what effects? In this paper, we answer these questions by examining the story of closed circuit television cameras (CCTV) in Britain. We consider the lessons to be learned from CCTVs rapidubut puzzlingutransformation from novelty to ubiquity, and what the banal properties of CCTV tell us about the social meanings of surveillance and security. We begin by revisiting and reinterpreting the historical process through which camera surveillance has diffused across the British landscape, focusing on the key developments that encoded CCTV in certain dominant meanings (around its effectiveness, for example) and pulled the cultural rug out from under alternative or oppositional discourses. Drawing upon interviews with those who produce and consume CCTV, we tease out and discuss the family of meanings that can lead one justifiably to describe CCTV as a banal good. We then examine some frontiers of this process and consider whether novel forms of camera surveillance (such as domestic CCTV systems) may press up against the limits of banality in ways that risk unsettling security practices whose social value and utility have come to be taken for granted. In conclusion, we reflect on some wider implications of banal security and its limits.