Analyst notes:  Despite a long standing Constitutional right of Americans to" be secure in their papers", writing, and communications, new technology seems to ellicit  assertions to the contrary.

Check out: FBI Documents Suggest FEds Read Emails Without A Warrant

You best be careful what you put on emails, Facebook, Twitter, your computer files, etc.  because the Feds do not believe in your privacy.   If you believe that email is like mail, with electrons.... beware, there is a vast difference in how your privacy is treated!  We know the Feds have snooped on US Citizens since the 1940s.  Now it is easier and they find many excuses to say "It is for our own good."  Yep, sure.  Even if it were true today (I do not believe it.)  Tomorrow's politics will surely change and it may become a powerful tool in the hands of the elite class (Feds).