The unwarranted mass surveillance and dragnet part. We have a thing called the fourth Constitutional amendment here in the United States. We also have the first amendment, which the Supreme Court has ruled in the past must not be subject to a "chilling effect".

The Flock camera system, and any dragnet surveillance system, is a direct chilling effect to the rights to freedom of speech, freedom from religious persecution and freedom of assembly.

The inalienable aspect of these rights means that literally no example or rationalization you can provide would justify impacting those rights for even a single individual or group.