Resumen de Stopping the spooks
The US National Security Agency's Internet surveillance apparatus is featured. It collects 1.6% of all Internet traffic--that's some 29 petabytes of data everyday, or a bit more than the experiments at the Large Hadron Collider produce in a year. The agency spends billions of dollars annually on collecting and analyzing this information. And until Edward Snowden outed it, the NSA was very good at keeping all this secret.
