Maybe you don't, but what about you and the sum of your friends and friends of your friends? That doesn't just mean tagging pictures or facial recognition - tha

Maybe you don't, but what about you and the sum of your friends and friends of your friends? That doesn't just mean tagging pictures or facial recognition - that includes collating ips and times - in someone checks into Starbucks with a NATed ipv4 ip from Starbucks wlan and your visit fb from the same external ip...