Child pornography is the boogyman used to compromise privacy. There is significantly more illegal material of greater concern such as communication to plot ter

Child pornography is the boogyman used to compromise privacy. There is significantly more illegal material of greater concern such as communication to plot terrorists attacks or companies ignoring safety regulations and leading to the deaths of many in doing so, and all that isn't scanned for either on the theory that it might exist, not that there is due cause for a search warrant or some similar mechanism and burden. But child pornography is the one thing Anglo-Saxon culture is notoriously emotional about, and willing to surrender all it's freedom and privacy for. For a while terrorism counted among this too, but that seems to have fallen off.