With the right equipment, anyone can trace where we are through our phones. Whether and how this technology is used has been a source of controversy for years.
One of the latest flare-ups is police use of Stingrays. In this context, it's not a type of fish but the brand name of an International Mobile Subscriber Identity tracking device.
Years before the NSA data spying scandal broke in the US, the European Commission turned its attention to the problem posed by data collection, though it took until October 21, 2013, for it to win the vote on the proposal. Read more in