From the New York Times:
... Three journalists whose private phone records were scrutinized by investigators working for Hewlett-Packard intend to sue the company for invasion of privacy...
While the dispute revolves around the issue of how the journalists’
careers may have been damaged by having their phone records examined, the threat to sue also raises the question whether it is proper for a news organization or its reporters to sue a company they cover. It is certainly not common.