This makes me nervous the RFID Journal reports Discover Rolling Out RFID Payment Platform Some how I doubt this is as secure as it needs to be for financial data.  What annoys me is we don't have a choice.  Three month ago VISA sent me a card with RFID, I don't want it. I don't want any of my information broadcasted when I walk around town.  This is almost as bad an idea as the State Department putting RFID into our passports.  Do people think about the negative consequences of these decisions or just see the beautiful possibility. 

Even if these toys are secure any one with a reader will know you have a credit card(and what type) and are an American citizen.  They may not care what your name is at that point.