RFID tags are getting more common in hospitals for tracking patients. This is, of course, a good thing. We really don’t want to lose patients and using RFID tags to track them seems like a sensible use of technology to me.
RFID tags raise some interesting issues regarding personal privacy though. RFID tags in clothes could be used to track your where-abouts and RFID tags in the things you buy can be used to track your spending behaviour.
In response to these concerns Vrije University in Amsterdam is developing an RFID blocking device to stop RFID searches and alert the user.
More on this story at Personal Tech Pipeline