Is an Expanded Biometric Immigration System Worth $7 Billion?

The U.S. checks fingerprints for people entering the country. What about when they leave? (The Atlantic)

The advantage of biometrics would be more accurate matches and less fraud. Spelling blunders, multiple identities, and other data errors all make biographic data more susceptible to error, according to the report. For example, recently it was discovered that Boston Marathon bomber Tamerlan Tsarnaev’s name was misspelled on a manifest list for a flight to Russia, resulting in the FBI missing a lead while investigating his terrorist ties.