I dunno what RFID is, but that sucks, mainly b/c it could be one less MB episode in the long run. If it would have helped people commit identity fraud, etc. though, I don't mind that much that it isn't going to be shown (not that it's going to make much difference in the end).
I wonder what happened with the episode they were supposed to show a couple weeks ago, about the internet vids (including car elevated by water hoses) as they didn't show it, it was a rerun, and now they're advertising that for next week.