I was once on a panel with Lance Strate. He is a thoughtful, smart media ecology expert who recently wrote a provocative blog on the Virginia Tech murders. He is not the first to equate guns with cameras (Susan Sontag and Paul Virilio have each made the connection on a deep level), but I thought he made some particualry sharp observations about the manner in which news media allow themselves to be exploited by sensationalism. I encourage you to read the entire post.
Guns and cameras are both media of communication, as McLuhan makes clear in Understanding Media: The Extensions of Man where he includes chapters on the photograph, motion picture, television, and weapons–both guns and cameras are extensions of the human body, guns extending the fist and fingernail in their offensive capacities, cameras extending the eyes in their voyeuristic capacities. Both guns and cameras are means by which we mediate between ourselves and elements of our environment, they go between us our environment, and in doing so keep the environment as a distance from ourselves. Guns and cameras are both methods by which people communicate, sending messages to their target, and to bystanders alike–that is why we have phrases like, “the shot heard around the world” after all. Guns and cameras are both weapons, both used to attack and cause harm (e.g., the paparazzi, the private detective stalking the adulterer), both used to control and imprison–that is why we talk about cameras using words like shoot, snapshot, load (the film), capture (the subject, the moment), etc.–this is a deep metaphor that reveals an often-unconscious understanding of the link between the two technologies.