Eye Scans: High Tech Hall Pass?

Greg Toppo:

The brushed aluminum box on the brick wall glows purple, a rim of light around an unblinking HAL-like eye.
You peek in and stare for a second, and the steel doors click open. A soothing female voice says: “Identification is completed.”
Welcome to Park Avenue Elementary School.
Freehold Borough School District installed the iris-scanning devices in its three schools last month. It and a district down the road in New Egypt are the first U.S. school systems to study what happens when adults are asked to eye-scan to get in the door each day.