We All Knew This Was Coming

OK, they aren't using subdermal implants. Yet.

CNET - Jul 12, 2004 - ...school authorities in the Japanese city of Osaka have decided the benefits outweigh the disadvantages and will now be chipping children in one primary school.

The tags will be read by readers installed in school gates and other key locations to track the kids' movements.

UPDATE:

Wired - Jul 13, 2004 - Mexico's attorney general said on Monday he had had a microchip inserted under the skin of one of his arms to give him access to a new crime database and also enable him to be traced if he is ever abducted.

Attorney General Rafael Macedo said a number of his staff had also been fitted with chips that will give them exclusive and secure access to a national, computerized database for crime investigators that went live on Monday.