TSA clarifies fingerprinting requirements – Homeland Security News Wire

TSA makes clear that only non-U.S. citizens will have to give fingerprints upon leaving the United States — and for now, only for a pilot project at Atlanta and Detroit airports

This is all part of DHS’s US VISIT pilot program. Fingerprints (biometrics) are already collected from incoming non-U.S. citizens applying for visas and also at ports of entry and are used to stop criminals and immigration violators. Exit prints will help identify when non-U.S. citizens exit the country, how long they’ve been here, or if somebody has stayed in the states illegally.