U.S.-Mexican Border: Biometrics' Impact On Transportation Flow

"With deadlines fast approaching, the Department of Homeland Security is racing to work out details of a hugely ambitious effort to use biometric technology to track foreigners entering and leaving the country. Perhaps no place offers a better window into the challenge than the world's busiest border crossing. Each day, about 50,000 vehicles funnel into the United States from Mexico through 24 lanes at the San Ysidro Port of Entry. Drivers already wait up to two hours for what is usually a cursory inspection before entering San Diego. "