NSA used location-tracking to tell agents if they were being tailed

On the heels of last week's phone-tracking revelations, The Washington Post has released a 24-page NSA white paper offering further detail into how the program is managed and used. One program described in the white paper worked to alert foreign agents if they were being tailed, sifting through the data for location records similar to the records of known agents.

via Tech News Headlines - Yahoo News http://www.theverge.com/2013/12/10/5197568/nsa-used-location-tracking-to-tell-agents-if-they-were-being-tailed