This is pretty cool -- a Georgia school has switched over to fingerprints rather than numbers to ID their students:
Rome City Schools is switching to a scanning system that lets students use their fingerprints to access their accounts. In the past, students had to punch in their pin numbers.
"The finger's better because all you've got to do is put your finger in, and you don't have to do the number and get mixed up," said Adrianna Harris, a second grader at Anna K. Davie Elementary School.
The new system speeds lunch lines, said city administrators. It's being phased in to Rome High School, Rome Middle School and all the city's elementary schools. The city hopes to have the system in use next month system-wide.