Was the Guardian right?

I wonder was the Guardian right to publish the fact the government has been sifting through our email and phone calls?
I think we all knew and assumed the government was already doing it.  We've all seen enough movies to know it's been going on for a very long time.  The question is do we really care? or we would we rather be safe and have them stop terrorists?
If we know that there is a video surveillance camera in a store would you run around telling people? or just go about your business?
Recently I was called a "Fascist" probably because in my opinion Glenn Greenwald should be considered a "Traitor"  I think we should draw the line and have some rules.  But to run around just blabbering something because it gives you a lead story is wrong.
To attack the current President for laws he did not put in place is also wrong.  It's interesting how just after 9-11 we wanted the government to do what ever it took to find the bad guys.  Now a strange shift because it's Mr. Obama? 
Since the first emails it was known that it was like sending a post card.  Google has been data mining your emails for years for marketing.  If you work for a company and the mail sits on the their server it belongs to them.  So who's email is it really?  Do we want to be safe? or paranoid?