And it gets even “better”: the “association” goes three levels deep. Basically, your friends’ friends’ friends. So if Alice knows Bob, Bob also knows Charlie, a

And it gets even “better”: the “association” goes three levels deep. Basically, your friends’ friends’ friends. So if Alice knows Bob, Bob also knows Charlie, and Charlie also knows Dave, the mere suspicion against Alice is enough to sweep Dave into the dragnet. https://www.theguardian.com/world/interactive/2013/oct/28/nsa-files-decoded-hops https://www.theguardian.com/world/interactive/2013/oct/28/ns...