http://www.washingtonpost.com/world/national-security/nsa-infiltrates-links-to-yahoo-google-data-centers-worldwide-snowden-documents-say/2013/10/30/e51d661e-4166-11e3-8b74-d89d714ca4dd_story.html
http://www.usatoday.com/story/cybertruth/2013/10/30/nsas-data-grab-should-boost-privacy-concerns/3315789
http://ggsidedocs.blogspot.com.br/2013/10/on-nsa-claims-about-misreporting-of-two.html