It's not "scary". All you need to prevent this attack is a 100-year-old piece of technology: a Faraday cage (of which one kind was advertised in the scare-article-slash-sales-piece). If anyone demands more than a couple bucks for such a device they're ripping you off, btw. It's just a metal lattice, sort of like a piece of tin foil with holes in it.

You can also destroy or disable RFIDs relatively easily. There are a variety of tutorials on this around the internet (check instructables.com). No guarantees your credit card will continue working after this.

Moral: don't fear technology, understand it and make it work for you.