camera camera surveillance cctv closed circuit tv external monitoring observation public security camera surveillance camera video camera big brother surveillance security view broken broken glass cracked cracked glass damaged neglected non-functioning old outdated awareness beware blue camera-surveillance closed-circuit-tv communicating communication information informing light lighting lookout observe safety security-camera surveillance-camera under-observation video-camera watch watched community advice alert announcement black cameras center centre extensive monitors notice notification sign signage thorough video warning warning-sign white