'California officials are outfitting preschoolers in Contra Costa County with tracking devices they say will save staff time and money.
 
The system was introduced Tuesday. When at the school, students will wear a jersey that has a small radio frequency tag. The tag will send signals to sensors that help track children's whereabouts, attendance and even whether they've eaten or not.'

Read more: Federal Taxpayer Dollars Used to Install Tracking Devices on Preschool Children