Indeed, I likely won’t stop there—transponders with GPS arrays are just about to find their way into the pet-retrieval business, and for a few hundred dollars I’ll be able to use a laptop or PDA to pinpoint Mrs. Beasley’s location at all times. If I and roughly 1.8 million other Americans have RFIDed our pets to help find them if lost, why wouldn’t responsible parents LoJack their children as well as their cars?

I think they would and will as soon as the technology becomes stable and cheap. What seems downright wrong or at least surreal can soon become routine, as people recognize the benefits of a new technology—particularly a safety-oriented one. Assigning unique identifiers to humans has an ignominious past, but images from the first set of children to be reunited with their parents thanks to such technology will casually moot years of debate and anxiety about ubiquitous surveillance and its manifest potential for abuse.

Ending most games of hide-and-seek is only the beginning. Companies such as nTag Interactive offer interactive RFID units for use at conventions and meetings. An exchange of personal data is triggered after two people stand across from each other for more than a minute, permitting attendees to generate a report of everyone they meet at the conference. People with overlapping interests might be especially targeted for each other, with tags indicating just how much reason they have to want to get acquainted. The implications flow far beyond expo center floors. Imagine being able to walk down a busy downtown street and automatically discern old college acquaintances, friends of friends, even lost relatives. The alienation within the modern Western city—so many people, each pretending not to notice one another—could be replaced by the thousands of serendipitous encounters and moments that otherwise don’t happen because we are a hair’s breadth away from being in just the right place at the right time.