Boston Globe correspondent Megan McKee has written this interesting story about a controversy in Rockland. A police lieutenant allegedly revealed the identity of a person who, using an online screen-name, warned about an upcoming police sobriety checkpoint.
Questions raised include whether or not the police had a right to do this, but also whether they might have broken the law in doing it. One comment on the story at Boston.com, however, suggests that anyone with basic know-how could trace the identity of a posting or e-mail like this.
The method described in that comment at least sounds plausible -- can anyone here confirm whether or not this is really possible?