How the NSA is tracking people right now Documents obtained by The Washington Postindicate that the National Security Agency iscollecting billions of records a day to track thelocation of mobile phone users around the world.This bulk collection, performed under the NSA'sinternational surveillance authority,taps into the telephony links of majortelecommunications providers including somehere in the United States. continua qui http://apps.washingtonpost.com/g/page/national/how-the-nsa-is-tracking-peopl...