In the wake of the attacks on Paris, debate in the United States has again looked determining the appropriate balance between privacy and security, especially with regard to encryption.

Link: https://www.washingtonpost.com/news/the-fix/wp/2015/11/18/the-paris-attacks-have-shifted-the-momentum-in-the-privacy-surveillance-debate/.

Similarly, European politicians have begun discussing the issue with regard to airline passenger data.

Link: http://bits.blogs.nytimes.com/2015/11/18/europe-shaken-by-paris-attacks-weighs-security-with-privacy-rights/?_r=0

New technology permits device cross- by including a unique sound in a TV commercial that a mobile application containing the SilverPush “audio beacon” recognizes. That app would typically be brand-specific. Once the sound is heard, the application knows what the user is watching.

Link: http://www.forbes.com/sites/thomasbrewster/2015/11/16/silverpush-ultrasonic-tracking/