A new development in RFID tags uses nanotechnology to create tags that could be printed directly onto packages at high volume and low cost. According to a recent article in ScienceNews magazine, researchers from South Korea and Rice University have developed a prototype RFID tag from ink laced with carbon nanotubes that costs about three cents per tag. The prototype holds only one bit of information, but the researchers hope to develop models that hold up to 96 bits-enough for a unique product code-onto a small tag that costs less than one cent.