By the way, this same information is already tracked and stored by the mobile networks themselves, and can be obtained by the government with a warrant (or likely by organizations like the NSA or CIA without one, given recent precedents).
"Cellular service providers generally retain information about phones’ contacts with towers, including which tower(s) each phone contacted during any given check-in, and which “face” of the tower(s) the phone contacted."
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By the way, this same information is already tracked and stored by the mobile networks themselves, and can be obtained by the government with a warrant (or likely by organizations like the NSA or CIA without one, given recent precedents).
See http://nce.fd.org/PDF%20Cellular%20Tower%20Location%20Inform... :
"Cellular service providers generally retain information about phones’ contacts with towers, including which tower(s) each phone contacted during any given check-in, and which “face” of the tower(s) the phone contacted."
with a warrant being the three magic words which totally changes the context. Oversight is important. There is no oversight to this data collection.