XKeyscore: NSA tool collects 'nearly everything a user does on the internet'

• XKeyscore gives 'widest-reaching' collection of online data
• NSA analysts require no prior authorization for searches
• Sweeps up emails, social media activity and browsing history
• NSA's XKeyscore program – read one of the presentations

http://www.theguardian.com/world/2013/jul/31/nsa-top-secret-program-online-data