米国：NSAは無差別・無限定に大量の通信傍受を実施？

下記の記事が出ている。

　In NSA-intercepted data, those not targeted far outnumber the foreigners who are
　Washington Post: July 5, 2014
　http://www.washingtonpost.com/world/national-security/in-nsa-intercepted-data-those-not-targeted-far-outnumber-the-foreigners-who-are/2014/07/05/8139adf8-045a-11e4-8572-4b1b969b6322_story.html

　New Snowden leak: Of 160,000 intercepted messages, only 10% from official targets
　ars technica: July 8, 2014
　http://arstechnica.com/tech-policy/2014/07/new-snowden-leak-of-160000-intercepted-messages-only-10-from-offical-targets/