Re: I'm afraid I agree of the potential danger to law enforcement
If the National Sheriff's Association is correct then lets take this to the logical extremes. Clearly mere citizens are all at risk having unique license plate numbers on our vehicles. At risk having a phonebook published with our name, number, and address.
If police cruisers were not INTENDED to be identified as police cruisers then they would use plain unmarked vehicles, which they often (mostly) do.