No smiling!

Hey, you. No smiling! And quit walking funny. We've got important biometric measurements to take.

As the push toward expanded use of biometric technologies rolls forward, the State Department decrees no smiling in passport photos, while scientists try to identify individuals from their walking gait. For what's going on in Texas, see the Grits for Breakfast series, "Biometric Blues," Stanzas One, Two and Three.