Bigger threat than ID cards?

This begins to sound scary and I think I might be thinking of investing in a company that would produce an RFID personal shield.

With tags in so many objects, relaying information to databases that can be linked to credit and bank cards, almost no aspect of life may soon be safe from the prying eyes of corporations and governments, says Mark Rasch, former head of the computer-crime unit of the U.S. Justice Department.

By placing sniffers in strategic areas, companies can invisibly "rifle through people's pockets, purses, suitcases, briefcases, luggage - and possibly their kitchens and bedrooms - anytime of the day or night," says Rasch, now managing director of technology at FTI Consulting Inc., a Baltimore-based company.

In an RFID world, "You've got the possibility of unauthorized people learning stuff about who you are, what you've bought, how and where you've bought it ... It's like saying, 'Well, who wants to look through my medicine cabinet?'"