Like, I'm here for making it a crime for a cop to spy on someone without legal and professional justification, but I really just don't see why we should let them have the tools to do it.
Also, I'm also worried about the legal uses of these things. A lot of our rights come down to the adversarial nature of interactions between the ordinary person and the state's capacity to inflict violence. Surveillance without a warrant is unchecked police power.