Names are only protected if there is an associated license or certification process. These processes are generally in place to insure that your doctor/lawyer/electrician is competent enough to do their job, there are major ramifications if they fail to do their job correctly and they can be punished by the system, take away their license, if they fail to meet accepted standards. The way I see journalism is your sources and reputation is what gives you credibility in place of a license, do a bad job and people are less likely to listen to what you have to say.