It isn't even 2% of the billions of instances of surveillance that occur daily
Stray 13 Jonathan Stray, Special to ProPublica, Aug. 5, 2013, 3:20 p.m. FAQ: What You Need to Know About the NSA’s Surveillance Programs http://www.propublica.org/article/nsa-data-collection-faq
Massive amounts of raw Internet traffic The NSA intercepts huge amounts of raw data, and stores billions of communication records per day in its databases. Using the NSA’s XKEYSCORE software, analysts can see “nearly everything a user does on the Internet” including emails, social media posts, web sites you visit, addresses typed into Google Maps, files sent, and more. Currently the NSA is only authorized to intercept Internet communications with at least one end outside the U.S., though the domestic collection program used to be broader. But because there is no fully reliable automatic way to separate domestic from international communications, this program also captures some amount of U.S. citizens’ purely domestic Internet activity, such as emails, social media posts, instant messages, the sites you visit and online purchases you make.
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