Why is the Government Collecting Your Biometric Data?

"The next time you get pulled over, watch for a blocky, black gadget attached to the officer's iPhone. That's the MORIS device, one of many mobile fingerprint and biometric scanners proliferating in police departments around the country. MORIS is designed to ascertain identity and dig up an unsavory past, but that's not all: the device can also gather iris scans, fingerprints, and photos searchable with face recognition technology."