Here's the thing - they sell that as a service to law enforcement agencies without a warrant. They don't have to go to court and say, you know, we need a warrant... They can do it on much lower authorities, like subpoenas and things like that... that's just this location information... What about your actual calling records? ...calling records are a proxy for what's called a person's social graph... that's the state of play today.

Edward Snowden Carolinian

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