Biometrics: Who Goes There?
by Trudy E. Bell, from the IEEE-The Institue
By combining different biometric screening techniques--for example, those that analyze the geometry of a person's palm and the flecks of color in an iris--it's possible to identify someone more accurately. And combining still more biometric possibilities works even better.
Read on at http://bmsmail3.ieee.org:80/u/6423/41374375