This is where we part ways. The law was not written specifically to force reporters to give up their sources. The law was written to compel any person with knowledge of a crime to supply that information when asked by the proper authority. The 'press' is not being charged with violating the law - two individual citizens, who also happen to be reporters, are being charged.
It sounds like you believe that reporters should be above the laws the rest of us have to obey, just by virtue of their choice of careers. I could not disgree more vehemently. No one should be above the law, including reporters, judges, congressmen and presidents. If you don't like the law, lobby to have it chaged for everyone.
The question we have to answer is simple. Were the reporters in the process of gathering information from a source or did they just stumble across a crime?