Teresa read the following paragraph about closed circuit tv, or cctv:
cities are increasingly turning to cctv surveillance as a public safety tool. a vocal minority opposes these systems, because they are expensive and do little to prevent crime. however, the systems have proven effective as crime-solving tools. instead of relying on sketches based on unreliable human memory, authorities can now use photographic-quality video stills to identify a person of interest.
what was the author’s purpose for writing this passage? will make brainliest.. im being