Color photograph of a protest against illegal immigration reform in Alabama.

Discusses the challenges the U.S. government faces in using biometric data, such as scanned fingerprints and facial features, to track foreign visitors in an effort to control illegal immigration and terrorist activity. Click on link for...

Discusses the challenges the U.S. government faces in using biometric data, such as scanned fingerprints and facial features, to track foreign visitors in an effort to control illegal immigration and terrorist activity. Click on link for...

Discusses the challenges the U.S. government faces in using biometric data, such as scanned fingerprints and facial features, to track foreign visitors in an effort to control illegal immigration and terrorist activity. Click on link for...