1.   Grelinger thinks the government should be able to devise a nonbiased system that identifies nonrisk travelers and lets them pass through without having to go through extensive security measures.

2.   In fact, Silicon Valley firms are making biometric scanning technology to identify air travelers around the world.

3.   In fact, Silicon Valley companies are making biometric scanning technology to identify air travelers around the world.

4.   Much of the spotlight will be on biometrics systems, which identify travelers by fingerprints, the patterns in their retinas, their voices or other individual characteristics.

5.   The problem is that lawmakers and others lack confidence that the system can reliably identify travelers whose bags should be examined.

6.   Those patrols, they said, do not stop and check documents or identify travelers.

7.   It did not identify the traveler.

8.   The Justice Department said last week it will identify risky travelers and require them to provide details about their plans in the United States.