Just as the U.S. Department of Agriculture mandates Radio Frequency Identification Device chips to monitor livestock, a Texas school district just begun implanting the devices on student identification cards to monitor pupils’ movements on campus, and to track them as they come and go from school.

Tagging school children with RFID chips is uncommon, but not new. A federally funded preschool in Richmond, California, began embedding RFID chips in students’ clothing in 2010. And an elementary school outside of Sacramento, California, scrubbed a plan in 2005 amid a parental uproar. And a Houston, Texas, school district began using the chips to monitor students on 13 campuses in 2004.

It was only a matter of time. Radio frequency identification devices are a daily part of the electronic age, and are fast becoming a part of passports, libraries and payment cards, and are widely expected to replace bar-code labels on consumer goods.

And it appears that the educational move to Big Brother-style monitoring is motivated mainly by money, despite privacy and health concerns.