Razor blades and medicines packaged with pinpoint-sized computer chips and tiny antennae that eventually could send retailers and manufacturers a wealth of information about the products — and those who buy them — will start appearing in grocery stores and pharmacies this year.
Within two decades, the minuscule transmitters are expected to replace the familiar product bar codes, and retailers are already envisioning the conveniences the new technology, called “radio frequency identification,” will bring — even as others are raising privacy concerns.
A grocery store clerk will know immediately when the milk on the shelf has expired, for example, and replace it before a customer can choose it. Stores could quickly pull from the shelves tainted and damaged products that are recalled or have expired, especially important in health care items.
http://www.cbsnews.com/stories/2003/07/08/tech/main562247.shtmlTalk about 'health care'! The world is changed forever. We are being bombarded by radio waves from everywhere.