Can Biometrics Solve the Authentication Problem?

“Fingerprints require fingerprint readers, facial recognition requires special infrared cameras to work well, and retinal scans are even more cumbersome.”
U.S. Army to Protect Warfighters With Continuous Biometric Authentication

“Rather than having to wait for and triage a large number of network anomalies, the analysts know within seconds that it has occurred, and exactly where it occurred. Containment can be effected within minutes of the intrusion.”