>As a civilian, your duty is to weigh your personal sense of discomfort against the societal benefits of improved child abuse detection.

No. Not your personal sense of discomfort... this isn't a case of privileging one person's selfishness versus the whole world. You have to weigh the harm to _all_ of society from loss of privacy, against the societal benefits of improved child abuse detection.

Including the future harm to those children as they live their lives with lost privacy.