I have been aware of this for some time.
mythbusters tried to do an episode on it a wile back but was not allowed to because CC companys stoped it from being aired.
I smash my rfid enabled cards with a hammer and kill the chips. If you don't wanna do that
(in other words your a pussy) you can also wrap your wallets with tin foil. If your a pussy and dont like cool and orginal wallet mods you can just call the company and ask for non RFID enabled cards and they will send you one.