l'articolo è qui. questa sotto la presentazione del sistema
XKeyscore presentation from 2008 – read in full | World news | theguardian.com.
Revealed: NSA program 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 histor
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