It is all public information, but this type of broadcast is just plain WRONG.
As to somebody compiling a list, you can be sure that the people who really intend to use such a list already made their own list. A long time ago.
In general a free society is helped by open information about who works where and does what. Obviously in some cases, particularly those related to law enforcement, it is helpful for the people involved to reduce the amount of information they post about themselves. Somebody at Homeland Security should include that concept in their training.