On The Guardian, a disturbing explanation by Glenn Greenwald on everything the NSA is able to acquire and learn about users surfing the Internet -- and he means everything. The XKeyscore can read your emails, see what sites you've visited and even monitor your Facebook chats. If The Guardian's article is too complex for you, here is the watered down version of what XKeyscore means. You can also read the full presentation here.
I, sitting at my desk," said Snowden, could "wiretap anyone, from you or your accountant, to a federal judge or even the president, if I had a personal email".
US officials vehemently denied this specific claim. Mike Rogers, the Republican chairman of the House intelligence committee, said of Snowden's assertion: "He's lying. It's impossible for him to do what he was saying he could do."
But training materials for XKeyscore detail how analysts can use it and other systems to mine enormous agency databases by filling in a simple on-screen form giving only a broad justification for the search. The request is not reviewed by a court or any NSA personnel before it is processed.
XKeyscore, the documents boast, is the NSA's "widest reaching" system developing intelligence from computer networks ? what the agency calls Digital Network Intelligence (DNI). One presentation claims the program covers "nearly everything a typical user does on the internet", including the content of emails, websites visited and searches, as well as their metadata.
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