According to the German website Heise Online, a look at source code for XKeyscore reveals that users of the anonymous TOR network "automatically end up in the databases of the NSA" and are flagged as "extremists." More here.
With this revelation is clearer how the NSA is trying to expose users of the Tor network. In October 2013, the Guardian had revealed that U.S. intelligence admits at least internally, not to be very successful. That had with "gate stinks" the agents summarized succinctly.
[...] According to the source code will be labeled as extremists in XKeyscore users when they search the internet for anonymizing tools like Tor or Tails, thanks to the global monitoring of search queries. It is these tools are however popular with many groups that rely on anonymity, so as well as lawyers, human rights activists and journalists around the world. The will, therefore, quite specifically by the NSA spying, about the contents of their e-mails.
|Please Don't Rob Me|
|“That’s the only question that matters.”|
|Careful or they'll hear your password|
|What the NSA Revelations Mean to the Average Internet User|
|Tech Companies' Requests to Disclose Surveillance Denied by U.S. Department of Justice|
|“We’ve received requests to add some artificial noise to the buses so that people can hear them.”|
|“A novel experiment by a government to work with journalists and educators to combat the spread of online misinformation.”|
|“The race is on to create lab-grown meat products.”|
|CaptchaTweet: Write Tweets in Captcha Form|
|The (Very Scary) People of Public Transit|
|How to Avoid Jury Duty|
|“Initial riders may be more comfortable getting into a car with a human in the driver seat.”|
|“Both spacecraft are still operational when they reached interstellar space.”|
|“Make it so. Make it so. Make it so.”|
|“Can you replace the spring of a pogo stick with repelling magnets?”|
|"Free apps make money by selling your personal data."|