PUBLIC MARKS with tags tracking & security

The National Security Agency is secretly piggybacking on the tools that enable Internet advertisers to track consumers, using "cookies" and location data to pinpoint targets for government hacking and to bolster surveillance.

Over the last year, through the revelations of Ed Snowden and independent reporting by others, we've learned more and more about the National Security Agency's spying programs. Indeed, there have now been so many revelations that it can be hard to keep them straight. So here's a handy guide to the most significant ways the NSA spies on people in the United States and around the world.

My book, Dragnet Nation: A Quest for Privacy, Security and Freedom in a World of Relentless Surveillance is now available on Amazon.com, Barnes & Noble and IndieBound. Here’s the description and some review