LED照明器具は監視装置？

下記の記事が出ている。

　At Newark Airport, the Lights Are On, and They're Watching You
　New York Times: February, 2014
　http://www.nytimes.com/2014/02/18/business/at-newark-airport-the-lights-are-on-and-theyre-watching-you.html

　The LED light fixtures are watching you at Newark Airport
　Naked Security: February 19, 2014
　http://nakedsecurity.sophos.com/2014/02/19/the-led-lights-are-watching-you-at-newark-airport/