alphadogg writes: Many law enforcement agencies across the U.S. track mobile phones as part of investigations, but only a minority ask for court-ordered warrants, according to a report released Monday by the American Civil Liberties Union. More than 90 law enforcement agencies said they track mobile phones during investigations, but only six reported receiving court-approved warrants after demonstrating that there's probable cause of a crime, according to an ACLU report http://www.aclu.org/protecting-civil-liberties-digital-age/cell-phone-location-tracking-public-records-request based on public information requests filed by the group last year.
"Card readers? We don't need no stinking card readers."
-- Peter da Silva (at the National Academy of Sciencies, 1965, in a
particularly vivid fantasy)