I came here to study http://xnxx.in.net/ xnxx porn The NSA's collection of "metadata" â€“ basic call logs of phone numbers, time of the call, and duration of calls – is now well-known, with the Senate holding a hearing on the subject this week. But the tools discussed in the new Guardian documents apparently go beyond mere collection, allowing the agency to sift through the haystack of digital global communications to find the needle of terrorist activity.