Apple, Microsoft, Facebook and Google defy U.S. authorities and notify users of demands for their data.

http://www.washingtonpost.com/business/technology/apple-facebook-others-defy-authorities-increasingly-notify-users-of-secret-data-demands-after-snowden-revelations/2014/05/01/b41539c6-cfd1-11e3-b812-0c92213941f4_story.html