The - and + of RFID

People need to see various perspectives on this stuff for the mind to fully register the implications of such gadgets. 

Radio-frequency_identification has many benefits, but it also means that people can be tracked like a bit of livestock.

www.kevinwarwick.com /ICyborg.htm, www.reading.ac.uk ,

www.spychips.com /blog/2006/04/kevin_warwick_one_scary_dude_1.html ,

http://www.rfid.org, www.rfidjournal.com

The Global Surveillance Industry...

Things like GPS & RFID certainly have a good side, but the dark side of using data & digital-security can be challenging. https://wikileaks.org/the-spyfiles.html
As the Web grows, personal_privacy is tougher to maintain. https://en.wikipedia.org/wiki/WikiLeaks

The TV drama, Person-of-Interest provides a fascinating depiction of a supercomputer that can record & access almost anything.