Journalist ethics vs. the law

So this story is really interesting to me. The woman was subpoened to testify who she heard certain information from (reveal her source) and has refused to do so. That is obstruction of justice or is it?
I'm split here because part of me wants to say that she should give up the source. If everytime a prosecutor wanted to get some information, you could claim yourself as a freelance reporter or claim the same freedom of the press that any journalist has. You could also use journalists as crime confidants because they could always use their freedom of the press as an excuse.
The other part of me says that if the press wasn't there, they wouldn't know, and you wouldn't have your information so we have to treat the press differently. They are not involved in the criminal act, so why be concerned with them? It is only taking advantage of the fact that they are digging at the truth.
Matter of fact, I am deciding right now that she did the right thing by going to jail for her journalistic ethics. What a dickhead prosecutor who wants to gig a member of the press on some technicality. We have to give the press freedom to pursue information and this limits that for no particular reason (I don't buy the safety of the public or any of that bullshit).