Who Is a Journalist?

According to the article by Jacob Weisberg, it describes the instance where two journalists did not want to give the court details of how they obtained information of CIA agent Valerie Plame. The question then becomes, if journalists obtain this right, then what is the criteria of determining a journalist? Are bloggers journalists? Is the 15 year-old high school student who writes for his school paper a journalist? Unlike lawyers and doctors journalists are not required to pass an exam, or recieve a certificate of some kind. In my opinion I think that journalists shouldn't have that right. If they got that information it should be shared, after all they are a voice of the people.